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January 29, 2015

Search: 0.65 of argon gas is admitted to an evacuated 60 container at 60 . The gas then undergoes an isochoric heating to a temperature of 500 .

Number of results: 10,182

Physics, please help!!!!
A 3.00 kHz tone is being produced by a speaker with a diameter of 0.175 m. The air temperature changes from 0 to 29ーC. Assuming air to be an ideal gas, find the change in the diffraction angle My solution v directly proportional to sqrt T v = sqrt 302 =17.382 lambda = v/f = 17...
May 6, 2007 by Papito

Chem
I have a question on this question would I forgo the sqaure root on this on because there is no sqaure except on the products side which is 2HI? I am lost because I set up ICE then got to: 54=(4X-0.09)^2/x*x Kc=[HI]^2/[x][x] At a particular temperature, Kc = 54 for the ...
March 23, 2010 by CC

physics
A large container is separated into two halves by a 2.0 cm thick glass divider. The area of the divider is 0.25 m^2 and the thermal conductivity of glass is 0.90W/m必. Each side is filled with 30 kg of water, specific heat 4180 J/kg必, at different temperatures. Initially, the...
May 15, 2012 by sand

physics
A large container is separated into two halves by a 2.0 cm thick glass divider. The area of the divider is 0.25 m^2 and the thermal conductivity of glass is 0.90W/m必. Each side is filled with 30 kg of water, specific heat 4180 J/kg必, at different temperatures. Initially, the...
May 15, 2012 by sand

physics
A large container is separated into two halves by a 2.0 cm thick glass divider. The area of the divider is 0.25 m^2 and the thermal conductivity of glass is 0.90W/m必. Each side is filled with 30 kg of water, specific heat 4180 J/kg必, at different temperatures. Initially, the...
May 16, 2012 by sand

Science
Which of the following procedures increases the average kinetic energy of the molecules in a beaker of water. 1. heating water from 0 degrees C to 100 degrees C. 2. Cooling steam at 100 degrees C to ice at 0 degrees C. 3. Changing ice at 0 degrees to liquid water at 0 degrees ...
October 4, 2009 by Wanda

English Expression
Birthday Present I have been with my boy friends for 2 years. His birthday is coming up May 13th and I have 3 ideas. He doesnt know I have been saving money, so he doesnt think I will be getting him anything. My ideas are: A new weed eater. We have an acre and a half lot and ...
May 2, 2008 by John

math
Mark uses 1 pt 9 fl oz and then 2 pt 10 fl oz from a container of film developer that holds 3 qt. How much of the developer remains? How would I set this problem up? Find out how many pints are in 3 qts. Find out how many oz are in a pint. Then you can figure out how much was ...
May 27, 2007 by Rhonda

physics
the cables of a suspension bridge as well as the elements of many man-made structures are designed to behave elastically. whey it is absolutely necessary that such elements function elastically? When loaded past their elastic limit, and the loads are repetitive, there is ...
October 28, 2006 by Katrina

Chemistry(Please help, thank you!)
A study of the system, H2(g) + I2(g) == 2 HI(g), was carried out. Kc = 54.9 at 699.0 K (Kelvin) for this reaction. A system was charged with 2.50 moles of HI in a 5.00 liter vessel as the only component initially. The system was brought up to 699.0 K and allowed to reach ...
March 14, 2012 by Hannah

Physics
Suppose 0.015 kg of steam (at 100.00 ーC) is added to 0.20 kg of water (initially at 14.0ーC). The water is inside an aluminum cup of mass 40 g. The cup is inside a perfectly insulated calorimetry container that prevents heat exchange with the outside environment. Find the final...
December 8, 2014 by Anonymous

economics
. Suppose you are a stock market analyst specializing in the stocks of theme parks, and you are examining Disneyland痴 stock. The Wall Street Journal reports that tourism has slowed down in the United States. At Six Flags Magic Mountain in Valencia, California, a new Viper ...
January 26, 2011 by annie

Everst
Suppose you are a stock market analyst specializing in the stocks of theme parks, and you are examining Disneyland痴 stock. The Wall Street Journal reports that tourism has slowed down in the United States. At Six Flags Magic Mountain in Valencia, California, a new Viper ...
October 26, 2011 by Beverly

Geography
I have to write a short essay for this topic: Compare and contrast the various sources of energy. This is what I have, but the only problem is I don't think this is comparing and contrasting. I'm just giving the facts out. Can someone please help me by letting me know how I ...
August 26, 2009 by mysterychicken

chemistry
hi i have difficulty in this question.any help would be much appreciated. 1) a mixture of 0.0080 mol of So2(g) and 0.0056mol of O2(g) is placed in one liter container at 100K. when equilibrium is established, 0.0040 mol of So3(g)is present 2SO2(g)+O2(g)->2So3(g) <- a) ...
December 31, 2009 by hrithik

Goodwill valuation - Accountancy
In case of Admission: Given a balance sheet as at 31 Dec 2008. The new partner was admitted on 1 Jan 2009. Goodwill was agreed at 2 years purchase and was to be valued in accorfance to the weighted average gross profit method for the previous four years starting from this year...
January 24, 2012 by sniper

optical density of safety googles
Optical density (0.0.) is defined as the logarithm (power of ten) of the attenuation of light transmitted through protective eye wear at a particular wavelength. For example, if glasses attenuate light at 1,064 nm. to 1 / 100,000 of its original intensity, the optical density ...
March 8, 2012 by dmkp

Organic Chemistry
What are proper techniques to induce crystallization from a saturated solution? (Select all correct answers.) Allowing the solution to cool down. Scratching the outside of the container with a glass rod. Seeding the solution. Adding a solvent that lowers the solubility of the...
April 29, 2010 by Joanna

science
I have a container which hold 30ml of fresh water that I need to heat to boiling using electricity run through an assumed efficient resistor. Assuming an ambient temperature of 23 degrees celsius how much watt energy do I need to put into 30 ml to bring the temperature to 100 ...
September 21, 2010 by Francis

English
Thank you very much. Here are some more sentences I'm not sure of. 1) Jason was very rude because he pushed Mickey. Mickey dropped the milkshake on the floor. Storm picked up the milkshake and poured it over Jason. The manager fired them both. 2)When I go to the supermarket, I...
February 1, 2011 by Franco

physics
A particle undergoes two displaments , measured from the positive x-axis, with counterclockwise positive.The first has a magnitude of 11 m and makes an angle of 88 with the positive x-axis. The resultant displacement has a magnitude of 6.8 m direceted at an angle of 115 from ...
August 7, 2014 by Anonymous

chemistry
A piece of dry ice (solid carbon dioxide) with a mass of 5.40 g is placed in a 10.0 L vessel? that already contains air at 715 torr and 25 degrees C. After the carbon dioxide has totally vaporized, what is the partial pressure of the carbon dioxide and the total pressure in ...
May 1, 2013 by Anonymous

CALCULUS - Check my answers :)
I'd appreciate corrections for the ones I get wrong. :) Thanks! 1. Determine which of the following is true for the function f(x) = x^3 +5x^2 - 8x +3. I. f(x) has a relative minimum at x = 2/3. II. f(x) has a relative maximum at x = 2/3. III. f(x) has a zero at x = 2/3 I only...
December 19, 2013 by Samantha

Chemistry 12
15. The concentration of hydroxide ions in a solution of nitric acid 0.2 M is: a. 2 x 10-14 M b. 5 x 10-14 M c. 5 x 10-7 M d. 2 x 10-1 M 16. Aqueous solutions of strong acids and strong bases: a. are good electricity conductors b. make litmus paper become red c. have a pH of 7...
December 3, 2012 by Need Help

Chemistry
Hemoglobin (Hb) in the blood absorbs oxygen to form oxyhemoglobin [Hb(O2)2], which transports oxygen to the cells. The equilibrium can be generally represented by the following (though it is actually composed of a series of equilibria in which Hb binds from between 1 and 4 O2 ...
April 1, 2012 by Laffy Taffy

Algebra
Please help me to to solve this quadratic equation word problem. Here is the question: Studying Microgravity. NASA'S Glen Research Center in Cleveland, Ohio, has a 435-foot drop tower that begins on the surface and descends into Earth like a mineshaft. How long will it take a ...
December 5, 2014 by lpcruz

chem.
if gas is $4.20 a liter, how much will it cost to fill a 14-gallon tank? conversion factor: $4.20L 1.06qt 1gal ______x________x______ 1 1L 4qt i have no clue how to set it up. i'm confused. <font color=blue>nevermind about the problem. good night.</font> You want ...
January 18, 2007 by cc

Physics
A wheel 1 meter in diameter is rotating at 100 revolutions per minute without slipping along a level stretch of road and passes mile marker 0 at 12:00 noon. it continues past mile marker 0 for 10 minutes and then has a period of angular acceleration of 2.5x10^-2 radians per ...
February 22, 2012 by Maria

Chemistry
Two beakers are placed in a sealed container surrounded with air. In one beaker is pure H2O (Beaker A) and the other beaker is a 10% Sugar solution (Beaker B). As the system approaches equilibrium what change occurs to the volume of water in beaker A? What happens to the ...
January 17, 2008 by Anonymous

English
Could you please check if everything is OK? Thank you very much. 3) Put the following into indirect speech using a suitable reporting verb (10) 1) 展ould you like to have dinner with me on Saturday?, he said to me. He invited me to have dinner ... 2) 鉄hall I help you carry ...
February 22, 2012 by Henry2

College Chem
If equal masses of O2 and N2 are placed in identical containers at the same temperature, which of the following statements is (are) true? a. both flasks contain the same number of molefules b. the pressure in the N2 flask is greater than in the other container c. there are ...
March 28, 2010 by Donna

Chemistry
I need to vary the surface area by choosing different size beaker. I will put liquid in there so it would have to be volume??cm^3? But the question is how can I calculate the surface area of the beaker ??? The key thing here is the container... Examples: 27cm^3??? 250 ml ...
March 18, 2014 by Anonymous

Math
1). 11 containers of hot chocolate are sold for $3.29 a container. 4 bags of 50 cups are sold for $1.29 a bag. 277 drinks are made each year. How much does it cost to make one serving of hot chocolate (not including the cost of the cup?) I got 277/(11 x $3.29). This equaled 7....
February 25, 2010 by Clayton

physics
Water is poured into a container that has a leak. The mass m of the water is given as a function of time t by m = 4.8t^0.8 - 2.9t + 21, with t ≥ 0, m in grams, and t in seconds. (a) At what time is the water mass greatest, and (b) what is that greatest mass? In kilograms...
January 26, 2011 by sagara

college
Dale Emerson served as the chief financial officer for Reliant Electric Company, a distributor of electricity serving portions of Montana and North Dakota. Reliant was in the final stages of planning a takeover of Dakota Gasworks, Inc. a natural gas distributor that operated ...
December 8, 2010 by james

calculus inverted cone
A container in the shape of an inverted cone has radius 6 ft and height 12 ft. It is being drained at 2〖ft〗^3/min. Find the rate of change of the height of the liquid in the cone when the height is 3 feet. The ratio of the radius to the height remains constant.
November 11, 2014 by George

PHYSICS
AHH this problem is driving me nuts! A small container of water is placed on a carousel inside a microwave oven, at a radius of 13.5 cm from the center. The turntable rotates steadily, turning through one revolution each 6.50 s. What angle does the water surface make with the ...
January 23, 2010 by Jen

chemistry
A + B -> C + D (reversible reaction) a 2L container contains 1 mol of C, 1.6 mol of D, 0.8 mol of A snd 0.8 mol of B. Calculate the equillibrium composition of the reaction. Kc =0.065 I think C and D are forming A and B because there is higher concentration of C and D. So ...
January 29, 2009 by jeff

chemistry
A + B -> C + D (reversible reaction) a 2L container contains 1 mol of C, 1.6 mol of D, 0.8 mol of A snd 0.8 mol of B. Calculate the equillibrium composition of the reaction. Kc =0.065 I think C and D are forming A and B because there is higher concentration of C and D. So ...
January 29, 2009 by jeff

Organic Chemistry
Hemoglobin (Hb) in the blood absorbs oxygen to form oxyhemoglobin [Hb(O2)2], which transports oxygen to the cells. The equilibrium can be generally represented by the following (though it is actually composed of a series of equilibria in which Hb binds from between 1 and 4 O2 ...
April 1, 2012 by Laffy Taffy

Science
Please check my answers? My textbook won't load, so i've had to use google and guess. 1. Scientists hypothesize that the sun formed ____. (1 point) less than a billion years ago **from a cloud of gas and dust less than a million years ago from a chunk of Jupiter 2. Two of the ...
February 19, 2013 by Ava

Chemistry; Stoichiometry
Consider the reaction 2Al + 3CuSO4 = Al2(SO4)3 + 3Cu What is the maximum amount of Cu (63.5 g/mol) that could be produced by reacting 20.0 grams of Al (27.0 g/mol) with excess CuSO4? 1. 70.6 g 2. 57.2 g 3. 129 g 4. 31.4 g Consider the reaction 4As + 3O2 = 2 As 2O3 What is the ...
May 6, 2010 by Annalie

ap chem
At a certain temperature, the equilibrium constant Kc is 0.154 for the reaction 2 SO2(g) + O2(g) *) 2 SO3(g) What concentration of SO3 would be in equilibrium with 0.250moles of SO2 and 0.578 moles of O2 in a 1.00 liter container at this temperature? Note: These latter moles ...
February 13, 2011 by Anonymous

ap chemistry
At a certain temperature, the equilibrium constant Kc is 0.154 for the reaction 2 SO2(g) + O2(g) *) 2 SO3(g) What concentration of SO3 would be in equilibrium with 0.250moles of SO2 and 0.853 moles of O2 in a 1.00 liter container at this temperature? Note: These latter moles ...
January 28, 2013 by cheri

math
A bottle containing 10 liters of alcohol one liter of alcohol is removed and replaced with water. After a liter of the mixture was removed and replaced with water, the operation being carried out 7 times in total. Then that amount of alcohol remains in the container.
June 10, 2014 by Jessy

math
A bottle containing 10 liters of alcohol one liter of alcohol is removed and replaced with water. After a liter of the mixture was removed and replaced with water, the operation being carried out 7 times in total. Then that amount of alcohol remains in the container.
June 10, 2014 by myke

math
how do you find a unit price? is there a formula you need to follow? ex.)how would i find a unit price on an ice cream that if 14 Fl. ounces, has 3 1/2 servings per container and each serving is 1/2 cup. the price of the ice cream is $4.79.
March 11, 2009 by kelsey

Chemistry
Can somebody check my answers 1. If a small piece of sodium is dropped into water, it begins to react, forming hydrogen gas and sodium hydroxide. In the equation, 2Na (s) + 2H2O (l) → 2NaOH (aq) + H2 (g), the sodium hydroxide that is formed is a A. compound in solution. ...
August 26, 2011 by Amanda

kcc ..... mechanics(sub)
2 spherical ball aer kept inside ..weight of ball a 3000N. weight of ball b 2000N.. and all surfaies are smooth find the reaction between ball and container............plz sir give me the answer this question ...in this question figure is given but i m not shows figure...
September 9, 2011 by sandeep

chem - check my answers?
i already posted this but i tried to solve it on my own can you check at the end of this paragraph? The study of kinetics group 1: Temp: 12.6 C T(K): 12.6+273= 285.6 1/T(K): 3.50X10^-3 this one is the x value Time: 816 sec Rate ョ: 7.66 x10^-6 LnR: -11.8 this is the y value ...
October 17, 2010 by chemistyr

math
Help please A bottle containing 10 liters of alcohol one liter of alcohol is removed and replaced with water. After a liter of the mixture was removed and replaced with water, the operation being carried out 7 times in total. Then that amount of alcohol remains in the container.
June 10, 2014 by Dany

Chemistry
Catalytic cracking is an industrial process used to convert high-molecular-mass hydrocarbons to low-molecular-mass hydrocarbons. A petroleum company has a huge supply of heating oil stored as straight chain C17H36, and demand has picked up for shorter chain hydrocarbons to be ...
August 29, 2010 by Joey

Physics
An object starts from rest an undergoes a constant acceleration in the positive x direction. After some time it covers a displacement of 37 meters in the positive x direction achieving some final velocity. If the object started from rest with double the original acceleration (...
September 3, 2014 by Jessica

Science
It would be awesome if you can help me with this :) Two station astronauts each need to perform three 8-hour EVAs during their 13-day mission to repair a damaged solar panel that was impacted by a micrometeoroid on the space station. How much oxygen will be needed to ...
January 31, 2011 by Sean

Chemistry 101
A Balloon with a volume of 2.00 L is at a pressure of 1.5 atm and a temperature of 20C. If the balloon is put into a container and the pressure is increased to 2.0 atm and the temperature is raised to 25C, what is the new volume of the balloon?
July 11, 2010 by mike

Chemistry
Dinitrogen pentoxide, N2O5, decomposes by a first-order reaction. What is the initial rate of decomposition of N2O5 when 3.6 g of N2O5 is confined in a 0.77 L container and heated to 65ーC? For this reaction, k = 5.2 x 10^-3 s-1 in the rate law (for the rate of decomposition of...
June 28, 2013 by Sara

chemistry
CO2(g) + H2(g) equilibrium reaction arrow CO(g) + H2O(g) Calculate the equilibrium concentration of each compound if 2.00 moles of CO2 and 2.40 moles of H2 are placed in a 3.90 liter container at 300ーC. Kc = 2.30 for the reaction at this temperature. [CO2] = M [H2] = M [CO] = ...
December 18, 2013 by Isaiah

Chemistry
I missed a few days of school due to a sick child. I'm reviewing for an exam and the following questions are giving me trouble as I wasn't there when they were reviewed in class. If possible, I need the step-by-step process. Thanks. 1.) If you put hydrogen peroxide on a cut, ...
November 13, 2014 by Chris

Chemistry
If we ignore the small fraction of U-234, natural uranium has a concentration of 99.28 atom% of U-238 and 0.72% U-235. Their half-lives are, respectively, 4.68*109 and 7.038*108 years. (a) In the future, will the U-238 percentage be higher or lower? (b) In Oklo, Gabon, Africa...
October 15, 2013 by Jane

Chemistry
What method of separation would you use for the following mixtures: acetone and water aluminum powder and ethyl alcohol. these were questions asked after a chapter of reading in my chem book. the separation techniques listed in the reading are filtration, distillation, and ...
September 4, 2006 by FLASH

chemistry
Which of the following constants are needed to calculate the change in enthalpy (H) for heating a sample of liquid water at 10C to steam at 150C. I) the heat capacity of water II) the enthalpy of fusion of water III) the heat capacity of ice IV) the enthalpy of vaporization ...
January 21, 2011 by Bob

science(check answers)
1. A 2. C 3. A 4. D 1. Coal, oil, and natural gas are inexpensive sources of fuel which do not cause pollution when used. A. true B. false 2. One reason people around the world use coal as an energy source is: A. It is nonrenewable. B. it can be found many places C. it is a ...
March 11, 2014 by matt

water vapor
When the weather is hot, and the inside of the house is cold, why do droplets of water form on the windows? Do they form on the outside or inside of the windows? Thanks. Water droplets form because of condensation. Here is a site that that talks about that. Actually, I have ...
April 23, 2007 by Isabella

physics
Water is poured into a container that has a leak.The mass 'm' of the water is given as a function of time 't' by, m=5t^0.8 -3t + 20 , with t>=0, mass in grams and t in seconds A) at what time is the water mass greatest,and B) what is the greatest mass? In kilogram per ...
October 19, 2014 by bill

chemistry
balance:H2(g)+S2(g)------->H2S(G)+heat A.) how would the equilibrium be affected give the following: - increase in temperature - increase in hydrogen concentration - increase in reaction container of volume B.) is equilibrium homogeneus or heterogeneus? C.) what is ...
February 28, 2012 by Mandy

math
jasmine bought 6 gallons of apple juice. after filling up 4 bottles of the same size with apple juice, she has 0.3 gallons of apple juice left. hhow many gallons of apple juice are in each container?
November 12, 2014 by kelsey

Science asap
1. Which of the following describes the correct sequence of events during the water cycle? precipitation → condensation → evaporation → runoff condensation → precipitation → runoff → evaporation runoff → condensation → ...
March 12, 2014 by anonymous

math
Your Porsche's gas mileage (in miles per gallon) is given as a function M(x) of speed x in miles per hour. It is found that M'(x) = 3,600x−2 − 1 (3,600x−1 + x)2 . Estimate M'(10), M'(60), and M'(110). (Round your answers to seven decimal places.) M'(10) = 1 ...
March 9, 2011 by Beth

physics..help PLZ!!
An object undergoes a displacement while being acted on by a constant force directed to the north. The work done on this object by the force is positive during the displacement. Which statement is necessarily true about the average velocity of the object during the ...
October 16, 2012 by Elizabeth

algebra "reiny"
how would you write an equation or inequality that could be used for analysis, prediction example gas prices? can some one explain to me how to write this i was going to do mine on diet how my sister last pounds on her diet she weight 410 lbs to begin with lost 1 year 110 lbs...
April 16, 2007 by carla

Physics
7. A formula 1 racecar is capable of very quick starts (with a launch control system, that prevents the wheels from spinning during rapid acceleration)). A 2011 Ferrari (driven by none other than Agent 001) is initially at rest, and undergoes a constant acceleration of 14 m/s^...
February 13, 2013 by Navmeet

equation
if the gas prices was say was .90 a gallon in 1950 and the prices now are 3.00 a gallon how would you write an equation to show the increase I am needing to graph this so i need a slope i think can anyone explain this please There is no need to plot a graph for the slope. You ...
April 17, 2007 by larry

Science (Energy)
Ok i have done 2 experiments (See below) the question i need help with is i need to explain the difference for the two combustions and i just dont know, please help me and thankyou for your help. The Combustion Of Marshmallows Aim To investigate how much energy is transferred ...
December 17, 2010 by Paul

intro chem HELp please
1. Zinc is often used to calibrate calorimeters because it undergoes a very sharp phase transition from the solid to the liquid at 419.5oC. Calculate the enthalpy change when 5 g of zinc metal is heated from 100oC to the point where the entire sample is melted. (The heat of ...
November 5, 2010 by John

Physics _ Please please help
The cross-sectional area of the U-tube shown below is uniform and is equal to one square centimeter (1.00cm^2). One end is open to the atmosphere. Atmosphere pressure may be taken as P1=1.01 * 10^5 Pa. The other end of the U-tube is connected to a pipe in which a constant gas ...
August 10, 2011 by Sonya

English
Writeacher, here are the sentences I urgently need you to check. 1)Though you are still a student, refer to the type of approach to work you may adopt when working. Would you work at a job, at a career, or at a passion? 2) Write at least five phrasal verbs that are related to ...
March 25, 2012 by Matthew

physics
1. Calculate the de Broglie wavelength in picometers (1 picometer =10^−12 meters) of an electron that has kinetic energy of 10 keV. The mass of an electron is 9.11 x 10^−31 kg 2. Winter is coming, so I want to make a 1500 W heating coil which will plug into a 120 V...
December 19, 2013 by Joshua Pams

Business communication
can someone help me to correct it? this message address to international employee. Message intend to announce a revenue drop caused by intensive competitive pressure Howdy guys! Shouldn稚 surprise anyone that we took a beating this year, given the insane pricing moves our ...
January 27, 2014 by Artem

Calculus
A container in the form of a right circular cone of height 16 cm and base radius 4 cm is held vertex downward and filled with liquid. If the liquid leaks out from the vertex at a rate of 4 cm^3/s, find the rate of change of the depth of the liquid in the cone when half of the ...
November 21, 2011 by Helga

Physical Science
3. Radioactive decay of nuclei often involves several decays before a stable nucleus is formed. This is called a decay chain. What stable isotope is formed when radon-222 undergoes a decay chain of four alpha decays followed by four beta decays? (A) tungsten-206 (B) platinum-...
November 20, 2013 by Adam

chemistry
Suppose a piece of lead with a mass of 14.9g at a temperature of 92.5c is dropped into an insulated container of water. The mass of water is 165g and its temperature before adding the lead is 20.0c. What is the final temperature of the system? The sum of the heats gained is ...
March 15, 2007 by Jon

math
You have a large container of olive oil. You have used 22 1/2 quarts of oil. Twenty-five percent of the olive oil remains. How many quarts of olive oil remain?
March 30, 2014 by anonymus

math
You have a large container of olive oil. You have used 25 quarts of oil. Twenty - five percent of the olive oil remains. How many quarts of olive oil remain?
August 28, 2014 by Uzzielx

Chemistry
How will the equilibrium: Heat energy + CH4 + 2H2S = CS2 + 4H2 be affected by the following? a) A decrease in temperature? b) The addition of H2 c) The removal of some CH4 d) An increase in the volume of the container e) The addiotion of a catalyst. i know that [CH4] goes up...
May 31, 2011 by Lina

Chemistry12
How will the equilibrium: Heat energy + CH4 + 2H2S = CS2 + 4H2 be affected by the following? a) A decrease in temperature? b) The addition of H2 c) The removal of some CH4 d) An increase in the volume of the container e) The addiotion of a catalyst. i know that [CH4] goes up [...
June 5, 2011 by Moriah

english - please correct
The economy is influenced by many factors that determine its surplus or deficit. Throughout the last several decades, we have seen the world痴 dependency on Oil and Gas, which are among two of the most important resources. As the demand for oil and gas grows, the American ...
April 6, 2008 by rose

Chemisty
A 5 μL drop of compound X, a 7 μL drop of compound Y, and a 15 μL of compound Z are placed in a closed container with 5 mL water and 2.5 mL air. The system is equilibrated at 25ーC. Determine the fraction of the total X, Y, and Z mass associated with each of the ...
September 2, 2014 by Anonymous

Physics
A student drops two metallic objects into a 120 g steel container holding 150 g of water at 25ーC. One object is a 200 g cube of copper that is initially at 85ーC, and the other is a chunk of aluminum that is initially at 5ーC. To the surprise of the student, the water reaches a ...
November 18, 2012 by R

Micro-Economics
Suppose that the government imposes a tax on heating oil. 1. Would the deadweight loss from this tax likely be greater in the first year after it is imposed or in the fifth year? 2. Would the revenue collected from this tax likely be greater in the first year after it is ...
October 5, 2014 by Ann

CHEM
A gaseous hydrocarbon (an organic compound consisting of C & H) weighing 0.232g occupies a volume of 102mL at 23 degrees Celcius and 749mmHg. Calculate the molar mass and identify the compound. The compound is: a)C2H4 b)C3H6 c)C4H8 d)C5H10 e)C6H12 How is this problem worked ...
December 13, 2006 by K

6th grade Ariththmetic/Math
Janine is having seven friends over for breakfast. Of the eight people who will eating breakfast, six like orange juice bestm and two prefer grapefruit juice. Both kinds of juice cost $2.89 for a gallon, $2.09 for a quart, and $1.29 for a pint. How many of each size container ...
January 10, 2011 by Umm... Help?! :]

CHEMISTRY
1.What is the relationship between polarity of a molecule and boiling point? 2.How does a hydrogen bond's strength compare to normal chemical bonds. such as covalent and ionic bonds? 3.Why don't fish freeze to death when the water above them freezes in a pond? 4.Why shouldn't ...
January 15, 2015 by Amy

CHEMISTRY!!
Which of the following is NOT a postulate of the kinetic molecular theory? A; the average kinetic energy of the particles is directly proportional to the absolute temp. B;the forces of attraction and repulsion between the particles are insignificant C:the moving particles ...
May 10, 2010 by Andy

chemistry
ok heres my question, nitrogylcerin decomposes: 4c3h4(no5)3 --->12co2(g) +10h20(g)+6n2(g)+02(g) whats is the max pressure that a 10.0L container will be able to withstand if 5.00 Nitroglycerin decomposes at temp of 1250c mm of nitroglycerin =227 g/m i got 2.00atm b) what ...
June 21, 2009 by dan

Chemistry
I would really like to understand how to do these problems, because my exam is coming up in a few weeks. I still cannot comprehend how you can tell if a system is is positive or negative according to reaction. For #1, I presume it is E if it is spontaneous at all temperatures...
March 27, 2014 by Rainie

Chemistry
I would really like to understand how to do these problems, because my exam is coming up in a few weeks. I still cannot comprehend how you can tell if a system is is positive or negative according to reaction. For #1, I presume it is E if it is spontaneous at all temperatures...
March 28, 2014 by Rainie

calculus
A container company is tasked to make an open-top rectangular box with a square base. The box must have a volume of 108cm^(3). let the length of the sides of the square base be x cm and the height h cm. (1) what value of x will produce the minimum outer surface area? (2) What ...
August 4, 2011 by NIKI

Chemistry
A student ran the following reaction in the laboratory at 327 K: CH4(g) + CCl4(g) 2 CH2Cl2(g) When she introduced 4.07E-2 moles of CH4(g) and 7.57E-2 moles of CCl4(g) into a 1.00 Liter container, she found the equilibrium concentration of CH2Cl2(g) to be 1.21E-2 M. Calculate ...
November 19, 2013 by Jessica

Chemistry
PLEASE fully explain these...I've already tried to figure them out and failed terribly... thanks so much 4. 5.6 x 10-6 mol of A and 5 x 10-5 mol of B are mixed in a 200 mL flask. The system is represented by the equation: At equilibrium, there is 4.8 x 10-5 mol of B. Calculate...
May 17, 2012 by Katie

Chemistry
For the equilibrium below at 400 K, Kc = 7.0. Br2(g) + Cl2(g) reverse reaction arrow 2 BrCl(g) If 0.90 mol of Br2 and 0.90 mol Cl2 are introduced into a 1.0 L container at 400. K, what will be the equilibrium concentration of BrCl?
March 2, 2010 by James

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