Tuesday
September 23, 2014

Search: 12. How many grams of CO are needed to react with an excess of Fe2O3 to produce 209.7 g Fe?

Number of results: 18,074

Chemistry
How many moles of Cacl are needed to be dissolved in .500g of H2O to form a 1.5m solution?
March 24, 2010 by Ty

math
how much fencing is needed to close a circular garden whose radius is 4.5
April 15, 2010 by Aaliyah

Calculus
If f(x) = (e^(x))sin(x) what is the 1000th derivative? Step are needed and the general rule/pattern
April 17, 2010 by Fred

chemistry
find the mass of solute needed. 3.0 liters of 2.0 M NaOH. or 500ml of 1.5 M NaCl?
April 20, 2010 by joseph

math
to make 5 sets of curtains when eachset requires 2 1/3 yards how many of material are needed?
May 10, 2010 by michael

chemistry
How much concentrated 12 M hydrochloric acid is needed to prepare 100.0 mL of a 2.0 M solution?
May 11, 2010 by {RayRay} NEED HELP PLZ

chemistry
how much energy would be needed to warm 7.40 g of water by 55 degrees celcius
May 11, 2010 by lisa

4th grade
how many jets would be needed to carry the passengers on 264 buses
June 1, 2010 by dashawn

Chemistry
What volume of 0.123 M AgNO3(aq) is needed to form 0.657 g of AgCl(s)? 0.564 mL. 18.6 mL. 37.2 mL. 1.77 L.
June 12, 2010 by Kelly

college math213
place parentheses, if needed, to make each of the following equations true: a.5+6.3=33 b.8+7-3=12 c.6+8-2/2=13 d.9+6/3=5
July 27, 2010 by fiona

engineering of science
What mass of oxygen is needed for the complete combustion of 8.9010−3 of methane?
October 2, 2010 by Eric

Chemistry
How many milliliters of 0.135 M HCl are needed to completely neutralize 56.0 mL of 0.101 M Ba(OH)2 solution?
October 7, 2010 by Veronica

principles of chenistry
What mass of calcuim chloride is needed to prepare 3.650L of 1.75 M solution?
October 16, 2010 by 0karla

Chemistry
How many milliliters of 6.0 M HCl would be needed if 3.000 g of K2CO3 were used in an experiment?
October 17, 2010 by Amber

physics
spring has k=82 N/m use a graph to determine the work needed to stretch it from x= 3.8 cm to x=6.2 cm where x is the displacement
October 20, 2010 by brie

Physics Help!!!
With the energy needed to warm up some amount of water from 26C to 44C, how high could you lift it?
November 8, 2010 by Molly

physics
What force is needed to accelerate a child on a sled with the total mass of 43kg at 1.5m/s
November 30, 2010 by karen

chemestry
given 43 moles of KCl how much HNO3 is needed to complet the reaction
December 8, 2010 by juan

Cal 1
Find the most general antiderivative of the function. Use C for any needed constant. f(x) = x - 6
December 8, 2010 by Tweak

Physics
How much time is needed for 5.0 N force to increase the speed of a 0.248 kg object from 12 m/s to 56 m/s?
January 6, 2011 by Maya

math
To make 5 sets of curtains, when each set requires 2'1/3 yards, how many of material are needed ?
January 18, 2011 by kim

ap chemistry
What minimum volume of .2M Na2CO3 is needed to precipitate all the Sr 2+ from 25mL of .1M Sr(NO3)2
January 19, 2011 by syd

chem
what mass of KIO3 is needed to convert the copper in 0.2 g of CuSO4 5H20 to Cu(IO3)2
January 21, 2011 by midget

physical
what is the minimum length of the mirror needed to view the whole body at any distance?
February 3, 2011 by ivy

physics
Calculate the net force needed to give an acceleration of 0,5m/s to a trolley with a mass of 1,5 kg
February 8, 2011 by Ephrime

organic bio chemistry
how many mL of a 0.20M KOH solution is needed to neutralize 25 mL of 0.25 M H2SO4?
March 8, 2011 by lisa

maths-urgently needed
Construct a triangle PQR with base PQ = 8.4 cm , angel P = 45 degree and PR - QR = 2.8 cm ??
January 23, 2013 by Anonymous

chemistry
How many mL of 5.00% (w/v) solution are needed to make 100mL of physiologic saline (0.90%(w/v) sodium chloride)?
March 17, 2011 by bob

AP Chemistry
what is the procedure and materials needed to make a 0.10m solution of Potassium Hydroxide?
March 22, 2011 by meghan

AP Chemistry
what are the procedures and materials needed to make a 0.10m solution of Silver(I) Chloride?
March 22, 2011 by meghan

chemistry
what is the average volume of vinegar needed to exactly neutralise 10.0mL of NaOH (aq)?
August 31, 2011 by cleetus

Chemistry
Calculate the volume of 2 M acetic acid needed to prepare 50 ml of 0.1 M acetate buffer.
September 29, 2011 by Allie

Chemistry
How much energy (in kcal) is needed to convert 53.2 g of water at 55.0 C to steam at 100.0 C
October 4, 2011 by Martha

chemistry
how much heat is needed to convert 8.75g of 100c water to steam?
October 4, 2011 by Anonymous

chemistry
how many mL of 5% BaCl2 X(multiplied) 2H2O are needed for 0.3500g pure sodium sulfate?
October 13, 2011 by kim

Chimestry
How many moles of HNO(3) are present if 4.20*10^-2 mol of Ba(OH)(2) was needed to neutralize the acid solution?
December 3, 2011 by Carmen

psychology test help ASAP
list 7 things that are needed to be considered emotionally intelligent??
December 5, 2011 by gabby

CHEMISTRY
How much heat energy is needed to convert 125.0g of ice from -27.0C to a liquid at 50.0C?
December 16, 2011 by Cha-Ching

math
list the necessary steps needed to find the missing answer 2*(3+5)=____-7
January 18, 2012 by nicole

phyhsical science
how much time is needed for a car to accelerate from 6.5 m/s to a speed of 22 m/s if the acceleration is 3.0 m/s/s?
February 7, 2012 by brandon

Chemistry
How much 0.5 M HCl is needed to neutralize 5.5 kg of ammonia dissolved in 6 gal of water?
February 11, 2012 by Amanda

chemistry
what volume of butyric acid would be needed to make 25.0mL of a 1.0M solution?
February 15, 2012 by anonymous

CHEMISTRY
Find the amount of CuSO4.5H2O needed to prepare 500 mL of 0.25 M solution.
February 20, 2012 by Sarah

physics
What are the factors that affect the quantity of heat needed to raise the temperature of a substance?
February 24, 2012 by jaquie

Math
How many positions would be needed to represent 57^10,001 in ordinary decimal notation. Thanks!
March 10, 2012 by Sandy

chemistry
how much concentrated 12 M hydrochloric acid is needed to prepare 100 mL of a 2.0 M solution?
March 28, 2012 by dellanie

Chemistry
A 55.0-mg sample of Al(OH)3 is reacted with 0.200M HCl. How many milliters of the acid are needed to neutralize the Al(OH)3.
May 1, 2012 by Emily

Chemistry
How many milliliters of a .5M HNO3 (aq) is needed to completely neutralize 100mL of a 0.10M KOH (aq)?
May 30, 2012 by Kc

chemistry
How many moles of HNO3 are present if 0.236mol of Ba(OH)2 was needed to neutralize the acid solution?
August 6, 2012 by Anon

Math
Which choice gives the correct order of operations needed to find the value of 4(6+3)-24 A.+,x,- B.x,+,- C.-,x,+ D.+,-,x A?
September 12, 2012 by Derrick

chemistry
calculate the mass of sodium hydroxide needed to prepare 100 ml of a .10 m solution
October 7, 2012 by mike

chemistry
calculate the mass of sodium hydroxide needed to prepare 100 ml of a .10 m solution
October 7, 2012 by mike

chemistry
what is the molarity of a h2so4 solution if 18.5ml of naoh are needed to neutralize 25.0 mL of the sample?
October 16, 2012 by sandra

history
the number of persons needed at a meeting in order for business to place is called
November 8, 2012 by jr

physics
HOw much heait is needed to raise the temperature of 5 kg of water 5 degrees celsius
December 2, 2012 by Jaeda

Consumer Math
Compute the square footage of carpet needed to cover a room 12' 3" x 18' 4".
January 11, 2013 by Will

math
2 2/3 + 7 3/4= rename or simplify as needed, I need to show how I got this answer HELP PLEASE
February 3, 2013 by Jared

Physics
what is the average force needed to stop a car traveling 28m/s in 55m?
February 19, 2013 by Tory

Physics
what is the average force needed to stop a car traveling 28m/s in 55m?
February 19, 2013 by Tory

maths-urgently needed
show that: 2^5 cos^2a sin^4a = cos6a-2cos4a- cos2a + 2
February 21, 2013 by Anonymous

Math f(x)
given f(x)= x^2+x and g(x)=2x+1 determine f[g(x)] i dont even know where to start with this question help is much needed
February 22, 2013 by anna

Chemistry
How many moles of magnesium sulfate are needed to make in a solution of 0.10g Mg2SO4?
February 26, 2013 by Rena

Chemistry
How many joules of energy are needed to change 275 g of water from 15C to steam at 100.C?
April 3, 2013 by B

Chemistry
How many milliliters water are needed to make a 0.171 M solution that contains 1.00 g of NaCl?
April 11, 2013 by Rob

chemistry
how many milliliter of .750M sulfuric acid are needed to neutralize completely 20 g of NaOH?
April 22, 2013 by xavier

Chemistry
How much mL of 0.2 M NaOH are needed to titrate vinegar while doing a titration with Phenolphthalein?
April 27, 2013 by Shashi

Chemistry
How much mL of 0.2 M NaOH are needed to titrate vinegar while doing a titration with Phenolphthalein?
April 27, 2013 by Shashi

chemistry
how much of 0.1 M NaOH is needed to neutralize 5mL of 0.1 M of HCL to a ph 7(color on the ph scale)...Thank you
May 14, 2013 by mae

Chemistry
How many liters of nitric acid are needed to neutralize 25mL of 4.2M calcium hydroxide?
June 5, 2013 by Anonymous

Chemistry
How many milligram of lysozyme (MW=14,600 g/mol) are needed to make 3 liters of a 10^-6 M solution?
September 15, 2013 by Kris

pe
Describe how balance and/or coordination is needed for at least three things that you do every day.
November 18, 2013 by Anonymous

Math
Solve the equation for the unknown quantity x. Round to the nearest thousandth if needed. 2x=29
December 14, 2013 by Clare

physical science
How much time is needed for a car to accelerate from 8.0 m/s to speed of 22 m/s if the acceleration is 3.0 m/s^2?
January 29, 2014 by Anonymous

chemistry
calculate the heat needed at 0c each of the following joules to freeze 275gof water
January 29, 2014 by delana

Math :-)
Explain why knowing the height is needed when finding the perimeter of a right triangle.
February 9, 2014 by anon

phy113
What mass of ice is needed to cool 60g of water from 43oC to 20oC
March 26, 2014 by sam

Physics 1
What torque is needed to accelerate a 70Kg disk with a 20 cm radius from rest to 10 rad/s?
April 17, 2014 by Sally

world history
what are some songs about Buddhism? They are needed for a school project.
June 1, 2014 by Anonymous

Physics Classical Mechanics
A physical pendulum consists of a disc of radius R and mass m fixed at the end of a rod of mass m and length l . (a) Find the period of the pendulum for small angles of oscillation. Express your answer in terms of m, R, l and acceleration due to gravity g as needed (enter m ...
November 7, 2013 by A

chemistry
If you burn 0.200 g of C(graphite) in an excess of O2 to give CO2, the temperature of the calorimeter, which contains 775 g water, increases from 25.00 degrees C to 27.38 degrees C. The heat capacity of the bomb is 893 J/K. What quantity of heat is evolved per mole of C? C (...
October 30, 2011 by Aubrey

chemistry
A definite amount of NH4cl was boiled with 100ml of 0.8N naoh for complete reaction. After the reaction, the reactant mixture containing excess of naoh was neutralized with 12.5ml of 0.75N nh2s04. Calculate the amount of nh4cl taken. The answer 3.78g who helps
February 10, 2013 by Fai

chemistry
A definite amount of nh4cl was boiled with 100ml of 0.8N naoh for complete reaction. After the reaction, the reactant mixture containing excess of naoh was neutralized with 12.5ml of 0.75N nh2s04. Calculate the amount of nh4cl takedn The answer 3.78g who helps
February 10, 2013 by Fai

Physics
A 60.0 kg runner expends 355 W of power while running a marathon. Assuming that 8.00% of the energy is delivered to the muscle tissue and that the excess energy is primarily removed from the body by sweating, determine the volume of bodily fluid (assume it is water) lost per ...
May 1, 2010 by Kelsey

speaking your mind
what is the importance of speaking your mind? It depends on your mindset. Some have power needs, some have attention needs, some have emotional needs to hear themselves, and some have mouths that just seem to be connected to a Duracell battery. One can not make the changes in ...
January 25, 2007 by anonymous

Chemistry
A mixture of C3H8 and C2H2 has a mass of 2.0g . It is burned in excess O2 to form a mixture of water and carbon dioxide that contains 1.6 times as many moles of CO2 as of water. Find the mass of C2H2 in the original mixture.
October 20, 2012 by Crystal

Chemistry
A mixture of C3H8 and C2H2 has a mass of 2.6g . It is burned in excess O2 to form a mixture of water and carbon dioxide that contains 1.6 times as many moles of CO2 as of water. Find the mass of C2H2 in the original mixture.
September 28, 2013 by bobert

Chemistry
A mixture of C3H8 and C2H2 has a mass of 2.6g . It is burned in excess O2 to form a mixture of water and carbon dioxide that contains 1.6 times as many moles of CO2 as of water. Find the mass of C2H2 in the original mixture.
September 28, 2013 by bobert

chemistry
a chemist reacts 8.85g or iron with an excess oh hydrogen chloride to form hydrogen gas and iron(II)chloride.calculate the theoretical yield and the percentage yield of hydrogen if 0.27g H2 are collected
March 7, 2010 by sammy

Chemistry
A mixture of C3H8 and C2H2 has a mass of 2.3g . It is burned in excess O2 to form a mixture of water and carbon dioxide that contains 1.6 times as many moles of CO2 as of water. What is the mass of C2H2 in the original mixture?
October 19, 2013 by Matt

Finance
Assume a bank has $5 million in deposits and $1 million in vault cash. If the bank holds $1 million in excess reserves and the required reserves ratio is 8 percent, what level of deposits are being held?
October 22, 2013 by Micheal

Electrochem
A baby's spoon with an area of 6.25 cm^2 is plated with silver from AgNO3 using a current of 2.00 A for two hours and 25 minutes. a) If the current efficiency is 82.0%, how many grams of silver are plated? b) What is the thickness of the silver plate formed (d= 10.5 g/cm^3)? I...
May 12, 2007 by Keith

Chemistry. Percent mass...
A 1.009 g mixture of the solid salts Na2SO4 (molar mass= 142.04) an Pb(No3)2 (molar mass= 331.20) form an aqueous solution with the precipitation of PbSO4 (molar mass= 303.26). The precipitate was filtered and dried and its was was found to be .471 g. The limiting reagent is ...
November 21, 2008 by Sarah

psychology
Could someone please provide help formulating interview questions relating to learning, intelligence, cognition, problem solving, motivation, effects of gender and culture on emotions and personality. This is a great deal of information to try to get from one interview. ...
June 5, 2007 by Anonymous

chemistry help !!!!!!!!!!!!!!!!
Benzoic acid react with NH2 group Draw the product of this reaction, name the new functional group produced, state the type of reaction that has occurred, name any other products of the reaction and briefly explain how you arrived at your answer.( one or two sentences.)
January 21, 2013 by john

Chemistry
Sorry to bother again. I'm stuck in these two problems as well. 1. A 27.0 g smaple of an unknown hydrocarbon was burned in excess oxygen to form 88.0 g of carbon dioxide and 27.0 g of water. What iss a possible molecular formula of the hydrocarbon? 2. A sample of CaCO3 was ...
September 9, 2007 by Anonymous

chemistry
Given the thermochemical equation below, calculate the amount of energy released when 250. g of NaOH (molar mass = 40.0 g/mol) reacts with an excess of HCl. Report answer to the correct number of significant figures in units of kilojoules, kJ. NaOH + HCl --> NaCl + H2O ...
April 25, 2013 by sarah

Physics
If the path-length difference between two identical and coherent beams is two wavelengths when they arrive on a screen, will they produce a dark or a bright spot?
March 22, 2008 by Emily

Physics
Find the energy (in joules) of the photon that is emitted when the electron in a hydrogen atom undergoes a transition from the n=7 energy level to produce a line in the Paschen series.
September 11, 2008 by Jenny

math check
I have a problem that I need checked it is the produce of the reciprocals of two consecutive integes is 1/182 Find the integers. I have as the answer -13,-14 or 13,14 is this correct?
October 12, 2008 by Shawn

Corprate Finance
An initial investment of $400,000 will produce an end of year cash flow of $480,000. What is the NPV of the project at a discount rate of 20%?
April 23, 2010 by Karen

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