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October 25, 2014

Search: A gaseous mixture of and contains 36.8 nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 565 ?

Number of results: 38,756

Chemistry
What is the maximum mass of product that can be formed when 76.0 g of solid zinc and 17.5 g nitrogen gas react?
February 28, 2010 by Tiffany

chemistry
If 0.500 mol NaN3 react, what mass in grams of nitrogen would result?
October 23, 2012 by Ariana

Org. Chem.
what is the precipitate formed when HCl is added? I believe the answer is NaCl, but I am not sure and this precipitate only formed in the first NaOH extract, as precipitate was essentially nonexistent in the 2nd extract? Below is what was done in the experiment. Also, does the...
September 21, 2009 by CM

algebra
Soybean meal is 16% protein and corn meal is 9% protein. How many pounds of each should be mixed to get a 350-lb mixture that is 12% protein?
April 13, 2009 by ashanti

algebra 1
soybean meal is 12 % protein and corn bean meal is 6%protein what it takes to make 240 IB mixture 7% protein?
April 12, 2010 by Jerry

algebra
Soybean meal is 16% protein and corn meal is 9% protein. How many pounds of each should be mixed to get a 350-lb mixture that is 12% protein?
September 23, 2010 by Anonymous

Chemistry
We have been getting numerous questions like this on assignments and I can't figure them out. Its like I know that there some way connected but I can't figure it out. This is for Chemistry in highschool and its likea review and so they are not going over it but I would still ...
September 17, 2006 by Tracy

Chemistry 2
An aqueous solution has a vapor pressure of 81.1 at 50 . The vapor pressure of pure water at this temperature is 92.6. What is the concentration of in mass percent?
January 27, 2011 by Jesse

Chemistry
A 10 g mass of krypton occupies 15.0L at a pressure of 210 kPa. Find the volume of the krypton when the pressure is increased to 790kPa. Thanks
May 6, 2012 by Amy

Chemistry
A solution was prepared by adding 15mL of 0.129 M KI, 5mL of 0.1 M Na2S2O3, 1mL of starch solution, and 15mL of 0.125 M (NH4)2S2O8. Calculate the concentration of (M) of I in the final mixture before the chemical reaction.
October 3, 2008 by Brian

chemistry
What information does this value of Kc indicate with regard to the amount of NO(g)in the equilibrium mixture at a 25 degrees celcuis?THe cointainer is heated and the system reacheas a new equilibruim at 2500 degrees celcuis at this temperature there 0,4 moles of NO(g)present.
March 3, 2010 by PAMELA

organic chemistry
1if you open the tert-butyl chloride and tert-butyl bromide to the air for few hours? What happened to the ratio of the halide mixture during this time? (2-methyl-2-propanol reaction )
October 8, 2013 by jenny

business math please help me
Nedís Sheds purchases building materials from Timbertown Lumber for $3,700 with terms of 4/15, n/30. The invoice is dated October 17. Nedís decides to send in a $2,000 partial payment. By what date must the partial payment be sent to take advantage of the cash discount? ...
May 30, 2013 by April

Math
I DO NOT understand this at all and I worked on it and came up with answers but they were wrong?? Nedís Sheds purchases building materials from Timbertown Lumber for $3,700 with terms of 4/15, n/30. The invoice is dated October 17. Nedís decides to send in a $2,000 partial ...
August 23, 2013 by Brandi

Math
I DO NOT understand this at all and I worked on it and came up with answers but they were wrong?? Nedís Sheds purchases building materials from Timbertown Lumber for $3,700 with terms of 4/15, n/30. The invoice is dated October 17. Nedís decides to send in a $2,000 partial ...
August 23, 2013 by Brandi

Chemistry
A solution having a volume of 3.0L contains 23 mmol of Oxygen 2. What is the molarity of this solution?
October 3, 2010 by Elly

chem
three moles of phosphoric acid contains how many moles of oxygen atoms
March 28, 2012 by lisa

Chemistry
which sample of matter is a mixture ? (1)H2O(s) (2)H2O(l) (3)NaCl(l) (4)NaCl(aq)
February 13, 2011 by Penny

Chemistry - pls help
This is a limit test for chlorides. 1.0g of NaOH sample was dissolved in 5ml of deionized water, acidified with 4ml of dilute nitric acid and diluted to 15ml with deionized water. (Test tube A) 10ml of 50ppm Standard NaCl solution was prepared. 5ml of water was added, follwed ...
September 22, 2010 by candy

Algebra
I have one question I really need help with. I know the partial sum process but my numbers dont seem to come out to what I think it should be. Find the partial sum S6 1. An=3n+2
April 4, 2013 by Jess

air mass movement
Fill in the blanks...Air masses MOVE from areas of__________ pressure to ares of ______________ pressure.
May 29, 2008 by Matt

amino acids
For the amino acid Lysine, the nitrogen with the H attached to it is not basic (since you can draw out the resonance for it). But the other nitrogen that has a double bond is not basic. Why is this?? I can draw out the resonance for the double bonded nitrogen as well.. so ...
June 6, 2009 by Kim

Physical science
Never found in nature uncombined? Alkali metals Alkaline Earth Metals Boron Family Carbon Family Nitrogen Family Oxygen Family Halogen Family Noble Gases
November 6, 2007 by liz

physical science
do not noramlly react with other elements? Alkali metals Alkaline Earth Metals Boron Family Carbon Family Nitrogen Family Oxygen Family Halogen Family Noble Gases
November 6, 2007 by liz

chemistry
How many grams of calcium nitrate, Ca(NO3)2, contains 24 grams of oxygen?
January 3, 2011 by Cindy

CHEM
How would I go about answer this question? If 72.26 g of hot water at 83.6 degrees C is mixed with 43.86 g of cooler wayer at 38.4 degrees C what will be the final temp of the mixture? The Cp of liquid water is 4.184 J/ g degrees C
October 4, 2007 by Chung

math
540 kg of dry concrete mixture is to be spread over three surfaces in the ratio equal to that of their areas.If their areas are 9 square m,11 square m and 16 square m,how much is used on each surface?
October 2, 2011 by Ella

Physics
Oxygen (O2) has a molar mass of 32.0 g/mol [.032kg/mol]. What is the root-mean-square speed of an oxygen molecule at a temperature of 310 K? Vrms=492 m/s What is its average translational kinetic energy at that speed? Kav= ?? J I am having problems with the second half, ...
December 9, 2007 by Christina

chem
what temperature must be maintained in insure that a 1.00 L flask containing 0.04 moles of oxygen will show a continuous pressure of 745 mm Hg?
March 20, 2011 by Gabby

physics
In a specific region of interstellar space the atomic composition of gaseous matter is 89.1% atomic hydrogen and 10.9% helium, the temperature is 27K and the pressure is 2.58x10^-15Pa. What is the density of matter in this region? What is the particle density?
February 13, 2013 by alicia

physics, physics, physics!!!!!
At a depth of 10.9 km, the Challlenger deep in the Marianas Trench of the Pacific Ocean is the deepest site in any ocean. In 1960, Donald Walsh and Jacques Piccard reached the challenger deep in the bathy scaph trieste. Assuming that sea water has a uniform density of 1024km/m...
January 28, 2007 by james

Microbiology
What is the diferece between a partial diploid clone and a partial diploid cell?
November 13, 2006 by Ron

Physics
A gas cylinder of volume 26 liters contains an ideal gas at temperature 27 degrees C and pressure 1920 kPa. Some of the gas leaks until the pressure falls to 1500 kPa. How many moles of gas leaked, assuming that the temperature remains constant during this process?
January 17, 2014 by Riley

Chemistry/Calorimetry
You buy coffee (200.0 ml) served in a styrofoam cup. You are up late working in a chemistry lab, and want to drink the coffee right away, but at 95.0 degrees C, it is too hot to drink. You like the temperature of your coffee to be 79.0 Ī 1.0 degrees C. You decide that the ...
February 23, 2012 by Jen

chemistry
A student generates H2(g) over water using the reaction between zinc and hydrochloric acid Zn(s)+ 2HCl(aq)---> ZnCl2(aq)+ H2(g) Data: Mass of vial and zinc 15.5082 mass of vial 15.3972 mass of zinc 0.111 final burette reading 45.30mL barometric pressure: Patm 100.6kPa ...
November 23, 2011 by Yuli

Chemistry
Iron metal is produced from the ore iron(III) oxide by reacting the ore with gaseous carbon monoxide at high tempature to produce liquid iron metal and gaseous carbon dioxide. How do you balanced this equation for this reaction?
November 19, 2011 by Nathan

thermodynamics
an automobile tire contains a certain volume of air at 30 psig and 70 degree fahrenheit. The barometric pressure is 29.50 in.Hg. If due to running conditions the temperature of the air in the tire rises to 160 fahrenheit, what will be the gage pressure? assume that the air is ...
September 17, 2012 by chi

Chemistry
What is the emperical formula of a compound that contains 0.04moles of sodium, 0.04moles of sulphur, and 0.06moles of oxygen?
March 27, 2012 by Allwell

chemistry
pleast help me work this prob lead is a toxic meatal that affects the central nervous system. a Pb-contaminated water sample contains 0.0011% Pb by mass. What vilume of the water in milliliters contains 115g of Pb? (assume that the density of the solution is 1.0g/ml
November 5, 2011 by swtnblk

chemistry
pleast help me work this prob lead is a toxic meatal that affects the central nervous system. a Pb-contaminated water sample contains 0.0011% Pb by mass. What vilume of the water in milliliters contains 115g of Pb? (assume that the density of the solution is 1.0g/ml
November 6, 2011 by swtnblk

chemistry
A flask contains 0.342 g of acid and a few drops of phenolphthalein indicator dissolved in water. The buret contains 0.120 M NaOH. 20.f mL of base is needed to reach the endpoint of the titration. Assuming that the acid is monoprotic, what is the molar mass?
April 10, 2013 by sara

Physics. Urgent help!!
The relative humidity is 55% on a day when the temperature is 30.0įC. Using the graph below, determine the number of moles of water vapor per cubic meter of air. on the graph, Vapor pressure of water is on the y-axis and temperature on the x-axis 30C cordinates with 4200 Pa of...
April 25, 2007 by Papito

Physics
A cylindrical tank has a tight-fitting piston that allows the volume of the tank to be changed. The tank originally contains 0.140 m3 of air at a pressure of 3.20 atm. The piston is slowly pulled out until the volume of the gas is increased to 0.440 m3. If the temperature ...
April 17, 2012 by MiMi

physics
a flask contains helium gas at 11k. the flask is thermally isolated and the gas is allowed to escape slowly through a narrow tube until the pressure within the flask is 0.98 atm and the temperature is 4.2K. if the gas is ideal, find the initial pressure for the flask to be ...
June 14, 2013 by annie

Chemistry
Enriched uranium is produced via gaseous diffusion of UF6. Suppose a process were developed to allow diffusion of gaseous uranium atoms, U (g). Calculate the ratio of diffusion rates of U235 and U238, and compare it to the ratio for UF6 given in the essay.
January 9, 2011 by Anonymous

CHEMICAL EQUATION
WRITE A CHEMICAL EQUATION FOR THE DECOMPOSITION OF GASEOUS FLOURINE INTO GASEOUS FLOURINE ATOMS
February 12, 2010 by Anonymous

Intermediate Algebra
how many gallons of a 90% antifreeze solution must be mixed with 100 gallons of 30% antifreeze to get a mixture that is 80% antifreeze?
August 31, 2011 by Heather

Organic Chemistry
The separation of a mixture of benzoic acid and benzoin in dichloromethane into its pure compounds by a combination of solvent extraction , distillation and recrystallization. Why is carbon dioxide evolved when the organic solution is shaken with sodium bicarbonate? what is ...
November 17, 2010 by Davia

Organic Chem
What is the product formed from the nitration of 1,2-dimethoxybenzene ( veratrole)? What would be the equation for the reaction. Details. Veratrole was mixed with glacial acetic acid.This mixture was then added dropwise to a solution of nitric acid and water.
March 2, 2010 by Niki

AP Chemistry
A mixture of argon and mercury vapor used in advertising signs emits light of wavelength 610 nm. Calculate the energy change resulting from the emission of 1.00 mol of photons at this wavelength. Answer in units of kJ/mol.
November 30, 2010 by Billy

Chemsitry II
50.00 mL of 1.0 M HCl and 50.00 mL of 1.0 M NaOH are mixed. The temperature is observed to increase by 10.0 degrees C. How much energy (in J) was absorbed by the calorimeter? Assume a density of the reaction mixture of 1 g/mL. Specific heat of the solution is 5.00 J/g/degree C...
May 31, 2011 by Sarah

chem
Using LeChatelier's principle, predict the direction of the net reaction in each of the following system as a result of decreasing the volume of the chamber for the reaction mixture. Where does the direction shifts? a.) N2(g)+ O2(g)= 2NO(g) b.) PCl5(g)=PCl3(g)+Cl2(g) c.) CO(g...
November 28, 2012 by Angel Locsin

science
Hi I have 2 questions I hope someone can help me :) 1)A pocket of gas is discovered in a deep drilling operation. The gas has a temperature of 480c and is at a pressure of 12.8 atm. What volume of gas is required to provide 18.0 L of gas at the surface where the conditions are...
March 25, 2007 by lindsay

CHEMISTRY
A lawn fertilizer is rated as 6.50% nitrogen, meaning 6.50 g of N in 100 g of fertilizer. The nitrogen is present in the form of urea, (NH2)2CO. How many grams of urea are present in 100 g of the fertilizer to supply the rated amount of nitrogen?
March 7, 2014 by Annie

Chemistry
14) A lawn fertilizer is rated as 7.04% nitrogen, meaning 7.04 g of N in 100 g of fertilizer. The nitrogen is present in the form of urea, (NH2)2CO. How many grams of urea are present in 100 g of the fertilizer to supply the rated amount of nitrogen?
July 1, 2014 by Luke

chemistry
Which of the following is a molecular compound that contains five atoms per molecule? germanium tetrabromide dinitrogen monoxide dinitrogen pentoxide nitrogen diselenide please explain. I am having a very hard time comprehending this stuff thanks
February 23, 2014 by Dee Dee

11th grade chemistry
a vessel contains 12 gm of methane gas at t degree celcius temp. and 1 atm. pressure. when the temp. is increased by 10 degree celcius at the same volume, the pressure increases by 10%. calculate the volume and initial temp.
November 8, 2010 by help

Analytical Chemistry
You prepare a solution from 10.0 mL of 0.100 M MOPS buffer (3-morpholinopropane-1-sulfonic acid) and 10.0 mL of 0.086 M NaOH. Next, you add 1.00 mL of 8.87 ◊ 10-4 M lidocaine to this mixture Denoting lidocaine as L, calculate the fraction of lidocaine present in the form LH . ...
February 26, 2013 by Sam

chemistry
A bottle of rubbing alcohol (C3H7OH) from the store is a 70% solution by mass. Determine the total vapor pressure inside the closed bottle. The vapor pressure of the water at room temperature is 24mmHg; the vapor pressure of the volatile rubbing alcohol is 44mmHg.
April 17, 2008 by billy bob j

general chemistry
Calculate the molar mass that would be obtained from the actual experimental data under the following conditions. The unknown is methyl propyl ether (CH3OC3H7) which has a vapor pressure of 375.2 torr at room temperature, 20C. The volume of the flask is 135 ml, the temperature...
November 22, 2011 by cinderrrr

Chemistry
I had to perform an experiment using a coffee-cup calorimeter to determine the enthalpies of two seperate reactions. For part 1 we worked with magnesium metal, and magnesium oxide. Data was collected and now I need to find the q, heat transferred for both magnesium and ...
February 13, 2012 by Hannah

PreCalculus
I am having a lot of problems with this linear programming problem. CAn someone help? A farmer buys two varieties of animal feed. Type A contains 9 oz. of oats and 2 oz. of corn per pound. Type B contains 5 oz of oats and 10 oz of corn per pound. The farmer wants to combine ...
January 30, 2009 by Joanie

Chemistry
A sample of nitrogen gas at 298 K and 745 torr has a volume of 37.42 L. What volume will it occupy if the pressure is increased to 894 torr at constant temperature?
July 11, 2011 by Jacob

physics
Three moles of nitrogen gas, N2, at 26.8 ◦C are contained in a 35.8 L cylinder. Find the pressure the gas exerts on the cylinder walls. Answer in units of Pa
April 26, 2013 by Anonymous

Alegbra
I have a problem that I need help with can someone show me the steps LiveStock Feed- Soybean meal is 16% protein and corn meal is 9% protein. How many pounds of each shoul be mixed to get a 350-lb mixture that is 12% protein?
February 17, 2011 by Donna

Science
science is the mixture ilearneed the science on the time she give my on fast day me is go for the killer and gave my juck on wag friends like the opportunity go as the preaper good life and good shade
July 6, 2012 by Jane

Science
science is the mixture ilearneed the science on the time she give my on fast day me is go for the killer and gave my juck on wag friends like the opportunity go as the preaper good life and good shade
July 6, 2012 by Jane

AP Chemistry
Analysis of a reaction mixture showed that it had the composition 0.43 mol/L N2, 0.541 mol/L H2, and 0.124 mol/L NH3 at 800 K, at which temperature Kc=0.278 for N2(g) + 3H2(g)<->2NH3(g). Calculate the reaction quotient Qc
November 26, 2013 by Gabriella

phycis
A cylindrical tank has a tight-fitting piston that allows the volume of the tank to change. The tank contains 0.5m^3 of air at a pressure of 2*10^5 Pa. The piston is slowly pushed in until the pressure of the air is increased to 2.5*10^5 Pa. If the temperature remains constant...
December 13, 2010 by joann

math
chalk contains 3% of carbon,10%of calcium & 12%of oxygen.find the amount in grams of each of these substancein 1kg of chalk.
July 29, 2011 by sonam

Science
Nitrogen, carbon, water and hydrogen make up more than what percentage of the mass of the human body?
September 8, 2008 by Ruben

Chemistry
What mass of ammonia is produced when 1.73 L of nitrogen (STP)react completely in the following equation? N2 + H3 > 2NH3
April 17, 2012 by Randy

Gas Stoichiometry
What mass of ammonia is produced when 3.08 L of nitrogen (at STP) react completely in the following equation?
May 6, 2013 by Jenny

Chemistry h/w
Hi, this is my first lab in 2nd semester of chemistry, and im not sure about my answers in the assignment can someone give it a quick look to check them? this is my phase diagram: tinypic. com/view.php?pic=1605yev&s=7 p.s. ignore the lone red dot its supposed to be 38C.. there...
September 21, 2010 by Jessie

chemistry h/w
Hi, this is my first lab in 2nd semester of chemistry, and im not sure about my answers in the assignment can someone give it a quick look to check them? this is my phase diagram: tinypic. com/view.php?pic=1605yev&s=7 p.s. ignore the lone red dot its supposed to be 38C.. there...
September 21, 2010 by Jessie

chemistry
A 24L sample of a gas at fixed mass and constant temperature exerts a pressure of 3.0 atm. What pressure will the gas exert if the volume is changed to 16L?
March 16, 2010 by catherine

Chemistry
a) Ammonia, an important source of fixed nitrogen that can be metabolized by plants, is produced using the Haber process in which nitrogen and hydrogen combine. N2(g) + 3H2(g) → 2NH3(g) How many grams of nitrogen are needed to produce 325 grams of ammonia? b)A 0.00100 ...
September 15, 2014 by Uma

physical chemistry
Calculate the equilibrium constant (K) for the ammonia synthesis reaction at 25įC and show how K is related to the partial pressures of the species at equilibrium. Consider that the overall pressure is low enough for the gases to be treated as perfect. N2(g) + 3H2(g) -> ...
November 10, 2010 by KC

chemistry
A 2.45 gram sample of potassium chlorate is heated an the oxygen gas collected. what is the volume of the oxygen at STP. Is the oxygen gas itself 2.45 grams or do I have to subtract something from that?
November 23, 2008 by Anonymous

Chemistry+Singe replacement
Balance the following equations if the reactions will occur. gold + oxygen Au + O2 --> ??????? barium + oxygen Ba + O2 --> ??? bismuth + oxygen --> Bi + O2 --> ??? help please. keep in mind this is single replacement
February 9, 2009 by Chopsticks

chemistry
What mass of sulfur must be used to pro- duce 14.7 L of gaseous sulfur dioxide at STP according to the following equation? S8 (s) + 8 O2 (g) −→ 8 SO2 (g) Answer in units of g
November 12, 2011 by Anonymous

Chemistry
Commercial bleach contains 5.25% (by mass) of NaClO in water. It has a density of 1.08 g/mL. Calculate the molarity of this solution. (Hints: assume you have 1 L of solution (mass 1080 g); molar mass of NaClO is 74.4 g/mol)
March 3, 2010 by Drew

Chemistry
A balloon contains 0.350 mol of Ar at 5.00įC and 68.0 kPa pressure. What is the volume of the gas?
June 23, 2014 by Robert

partial fractions
(7x^2-16)/(x^2-2x) solve by using partial fraction decomposition. i cant figure out how to do this because after i split up the bottom the A and B dont end up having an x^2 in order to equal the numerator of the original fraction. so confused!
July 20, 2011 by gabs

Math- Partial Fractions
Decompose the following into partial fractions after factoring the denominator as much as possible. Please show some work so I can understand how you did it. 1)x^2/((x-1)(x^2+5x+4)) 2)(3x^3-5x^2+12x+4)/(x^4-16) 3)1/(x^2 (x+1)^2 ) 4)(x+1)/((x^2+1) 〖(x-1)〗^2
April 4, 2013 by Chris

science
1. What will happen to the pressure in your tires if the temperature drops 40 degrees over the night? a) Pressure will increase b) Pressure will decrease c) Pressure will not change d) Cannot determine
February 15, 2008 by josh

Physics
Total lung capacity of a typical adult is approximately 5.0L. Approximately 20% of the air is oxygen, as air is 20% oxygen. At sea level and at an average body temperature of 37 C, how many moles of oxygen do the lungs contain at the end of an inflation? n=PV/RT V=5.0L=.005m^3...
November 19, 2009 by ana

physics
A horizontal pipe contains water at a pressure of 108 kPa flowing with a speed of 1.5 m/s. The pipe narrows to one-half its original diameter. What are the speed and the pressure of the water when the pipe narrows?
December 7, 2010 by aok

PHYSICS
A copper vat is 10 m long at room temperature (20 degrees C). How much longer it is when it contains boiling water at 1 atm pressure? Air in a balloon does 50 J of work while absorbing 70 J of heat. What is its change in internal energy? A bottle containing 3 kg of water at a ...
February 17, 2011 by Matt

chemistry
Two liquids of different densities (ρ1 = 1500 kg/m3, ρ2 = 500 kg/m3) are poured together into a 100 L tank, filling it. If the resulting density of the mixture is 800 kg/m3, find the respective masses of the liquids used.
August 29, 2012 by nick

chemisrty
Will 1,1,2, trichloro ethane rotate polarized light if it is cooled to low temperature and trapped in its lowest energy position? Yes, under all circumstances. Yes, but only if it is chiral. No, it will never rotate light. No, there is a racemic mixture present.
June 1, 2013 by Anonymous

Chemistry
If a 8.0mL sample of blood plasma has a mass of 8.223g and contains 1.233g of urea, what is the mass/mass percent concentration of urea in the sample?
February 7, 2013 by Elaine

Maths
Principal - 6000 Rate - 5% Effective Date - May 15 Maturity Date - November 1 Partial Payment Amount - $1500 Partial Payment Date -August 15 Also Answer the following questions: 1. NUMBER OF DAYS BETWEEN EFFECTIVE DATE AND PARTIAL PAYMENT = 2. INTEREST ON PARTIAL PAYMENT DATE...
March 10, 2008 by Kim

MATH
Nedís Sheds purchases building materials from Timbertown Lumber for $3,700 with terms of 4/15, n/30. The invoice is dated October 17. Nedís decides to send in a $2,000 partial payment. By what date must the partial payment be sent to take advantage of the cash discount? (...
August 18, 2013 by ANN

Chemistry
1. Mass of flask, boiling chips, foil cap and unknown after cooling reaction 83.350g 2.Mass of flask, boiling chips,and foil cap. 82.657 3. water bath temperature C is 95.0 C 4. Barometric pressure inches of Hg 30.09 5. Accepted molar mass of unknown is 86.2g/moles 6. Volume ...
June 14, 2010 by Anonymous

Chemistry
Mass of flask, boiling chips, foil cap and unknown after cooling reaction 83.350g 2.Mass of flask, boiling chips,and foil cap. 82.657 3. water bath temperature C is 95.0 C 4. Barometric pressure inches of Hg 30.09 5. Accepted molar mass of unknown is 86.2g/moles 6. Volume of ...
June 14, 2010 by Anonymous

science
how many oxygen atoms are in 773.2g of carbon dioxide? and also what is the molar mass of an element where 3.4 moles of the element has a mass of 669.69g? which elent is it?
May 6, 2013 by wardy

chemistry
A 5.02 L sample of nitrogen dioxide gas is collected at 500įC and 5.00 atm. What is the volume of nitrogen dioxide at standard condition?
August 4, 2010 by Deanna

physics
Consider nitrogen gas, N2, at 27.7įC. What percentage of nitrogen molecules have a speed within 1.00 m/s of the most probable speed?
August 20, 2014 by SUZAN

intermolecular force
In a mixture of ethanol and water, the strongest intermolecular force present between the two chemicals is ? is it hydrogen bond? yes its hydrogen bonding
January 26, 2007 by krissee

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