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December 22, 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: 18,821

Chemistry
A 2.00g sample of Fe3O4 is reacted with with 8.00g of O2 to produce Fe2O3. a) What mass of Fe2O3 will be produced? b) What mass of Fe2O3 will actually be produced if the percentage yield for reaction is 85% produced?
August 12, 2014 by Paul

chemistry
Suppose 87.9 grams of FeCl3 reacts with excess aluminum metal to produce 22.3 grams of Fe. What would be the % yield? FeCl3 + Al --> AlCl3 + Fe
March 26, 2013 by Amy

chemistry
if 20g of magnesium react with excess hcl how many grams og mgcl2 will be produced
February 25, 2010 by sean

Chemistry
16.7 grams of chlorine gas are allowed to react with with 3.31 grams of water What is the maximum amount of hydrochloric acid that can be formed in grams. What is the maximum amount of hydrochloric acid that can be formed? grams What is the FORMULA for the limiting reagent? ...
December 4, 2010 by Austin Jekins

Chemistry
How many grams of chlorine are required to react completely with 5.00 grams of sodium to produce sodium chloride ? 2na + cl2 → 2nacl
March 29, 2013 by mispa

Chemistry
how many grams of phosphorus pentachloride are needed to produce 49 grams of phosphoric acid.
May 12, 2013 by Anonymous

chemistry
how many grams of HCL is needed to produce 200 grams of hydrogen?
April 26, 2014 by Anonymous

Chemistry
Zinc and sulfur react to form zinc sulfide according to the equation Zn+S=>ZnS a) How many grams of ZnS will be formed? b) How many grams of the excess reactant will remain after the reaction is over?
March 8, 2012 by Annie

Comlumbus
Used the following equation to answer the question below : 5C(s)+2SO2(g)=CS2(I)+4CO(q) A-) how many moles of carbon needed to produce 13g of CS2. B-) how many grams of SO2 are necessary to react with 3.45g of carbon. C-) how many liters of CO (at STP) re produced from 2.45 ...
May 16, 2014 by PawToo

Chemistry..
A chemical engineer calculated that 15.0 mol H2 was needed to react with excess N2 to prepare 10.0 mol NH3. But the actual yield is 60.0% . Write a balanced chemical equation for the reaction. Is the amount of H2 needed to make 10.0 mol NH3 more than, the same as, or less than...
January 2, 2013 by Anonymous

Chemistry
If a solution containing 52.044 g of mercury(II) chlorate is allowed to react completely with a solution containing 15.488 g of sodium sulfate, how many grams of solid precipitate will be formed? How many grams of the reactant in excess will remain after the reaction? I have ...
October 13, 2013 by Chelsea

chem
How many moles of carbon are needed to react with 525 g of hematite 2FeO3+6C->4Fe+3Co2 idk how to convert moles of fe2o3 to carbon
September 29, 2013 by Julie

chemistry
How many grams of NaCl must react to produce 1.00 g Cl2?
April 14, 2010 by brigette

Chemistry
If a solution containing 33.82 g of mercury(II) acetate is allowed to react completely with a solution containing 9.718 g of sodium sulfate, how many grams of solid precipitate will be formed? How many grams of the reactant in excess will remain after the reaction?
January 17, 2013 by Caitlin

please help!!
If a solution containing 33.82 g of mercury(II) acetate is allowed to react completely with a solution containing 9.718 g of sodium sulfate, how many grams of solid precipitate will be formed? How many grams of the reactant in excess will remain after the reaction?
January 17, 2013 by Caitlin

chemistry
how many grams of silver chloride are produced when 45 grams of calcium chloride react with excess silver nitrate?
May 13, 2010 by kathren

chemistry
If I react 150.0 grams of zinc II sulfate with EXCESS calcium Sulfide, what mass of product(s) will be produced?
August 15, 2012 by Heather

chemistry
If I react 500.0 grams of calcium carbonate with EXCESS Hydrogen Chloride, what mass of products will be produced?
August 15, 2012 by Heather

basic chem
If a solution containing 33.82 g of mercury(II) acetate is allowed to react completely with a solution containing 9.718 g of sodium sulfate, how many grams of solid precipitate will be formed? How many grams of the reactant in excess will remain after the reaction?
January 17, 2013 by Caitlin

chem please help!
If a solution containing 33.82 g of mercury(II) acetate is allowed to react completely with a solution containing 9.718 g of sodium sulfate, how many grams of solid precipitate will be formed? How many grams of the reactant in excess will remain after the reaction?
January 17, 2013 by Caitlin

Chemistry
If a solution containing 118.44 g of mercury(II) perchlorate is allowed to react completely with a solution containing 17.796 g of sodium sulfide, how many grams of solid precipitate will be formed? How many grams of the reactant in excess will remain after the reaction?
April 1, 2014 by Noelle

Chemistry
Use the chemical reaction below to answer the questions that follow. CuO(s) + H2(g) → Cu(s) + H2O(g) a. What is the limiting reactant when 19.9 g CuO react with 2.02 g H2? b. The actual yield of copper was 15.0 g. What is the percentage yield? c. How many grams ...
March 16, 2011 by Kayla

Chemistry
Sulfur and fluorine react in a combination reaction to produce sulfur hexafluoride: S (s) + 3F2 (g) SF6 (g) What is the minimun number of moles of fluorine gas needed to completely react with 16 g sulfur? a. 1 b. 1.5 c. 2 d. 3 e. 6
November 1, 2009 by Courtne

Jefferson
Nitric acid and zinc react to form zinc nitrate, ammonium nitrate, and water. 4Zn(s) + 10HNO3(aq)→ 4Zn(NO3)2(aq) + NH4NO3(aq) + 3H2O(l) A. How many atoms of zinc react with 1.49g HNO3? B. Calculate the number of grams of zinc that must react with an excess of HNO3 to ...
January 7, 2013 by Gloria

chemistry
Nitric acid and zinc react to form zinc nitrate, ammonium nitrate, and water. 4Zn(s) + 10HNO3(aq) → 4Zn(NO3)2(aq) + NH4NO3(aq) + 3H2O(l) A. How many atoms of zinc react with 1.49g HNO3? B. Calculate the number of grams of zinc that must react with an excess of HNO3 to ...
January 7, 2013 by Anonymous

chemistry
Hydrogen and oxygen react to produce water according to the equation below. 2 H2 + O2 2 H2O How many liters of hydrogen at STP are needed to produce 0.24 mol H2O?
March 27, 2012 by marie

stoichiometry
How many grams of Fe is needed to make 8 g of FeO3. I was given Fe + H2O ---> H2 + FeO3. I balanced it: 2Fe +3H2O -----> 3H2 +Fe2O3. divided 8 by 160 (sum of parts of Fe2O3 got .05 multiplied .05 times 2 because ratio was 2:1 and got 0.1 multiplied 0.1 times 56 (value of...
December 1, 2006 by CJ

chem really need help!
If a solution containing 33.82 g of mercury(II) acetate is allowed to react completely with a solution containing 9.718 g of sodium sulfate, how many grams of solid precipitate will be formed? How many grams of the reactant in excess will remain after the reaction?
January 17, 2013 by Caitlin

Chemistry
N_2+3H_2-->2NH_3 How many grams of H_2 are needed to react with 3.20 grams of N_2
October 23, 2010 by Doug

Science
How many grams of oxygen gas would be needed to react with 75 grams of hydrogen gas
January 8, 2013 by Tammy

chemistry
How many grams of N2 are needed to react with 125g of H2?
December 5, 2011 by sara

chem
what mass of hematite (fe^2O^3)is required to react with excess carbon and produce 2.845g of iron, if the % yield is 75.369 formula is 2fe^2O^3+3C=4Fe+3CO2
September 26, 2007 by Anonymous

Chemistry
1. The reaction of fluorine with ammonia produces dinitrogen tetrafluoride and hydrofluoric acid. F2(g) + NH3(g) N2F4(g) + HF(g) a. If you have 66.5g NH3, how many grams of F2 are required for complete reaction? b. How many grams of NH3 are required to produce 4.65g HF? c. ...
March 26, 2011 by Sulon

college chemistry
How many gram of Zn would be necessary to produce 534 grams of Fe by the sequence of reactions shown below? Step 1 Zn + HCl ==> ZnCl2 + H2 Step 2 Fe2O3 + H2 ==> Fe + H2O
October 23, 2012 by ursula

chemistry
You are a chemist requested to review and analyse certain debris found on thebottom of aboot found in a crime scene. The debris contains metal fragments. If you identify the metal fragments---it will help the detctive identify the locations traveled by the person who did the ...
February 26, 2012 by Jimmy

Chemistry
a mixture of 34.0g of ammonia and 50.0g of elemental oxygen react to form elemental nitrogen and water. Please write a balanced chemical equation for this reaction. Find the theoretical yield of water in grams and give the amount of excess reactant in grams
March 3, 2014 by Tra

Chemistry
How much heat (in kilojoules) is evolved or absorbed in the reaction of 2.90g of Fe2O3 with enough carbon monoxide to produce iron metal? Fe2O3 + 3CO ---> 2Fe + 3CO2 dH=-24.8kJ How do you find q (of the 2Fe in kJ).
April 6, 2011 by Chris

chem 1
9.70 grams of nitrogen gas are allowed to react with 5.44 grams of oxygen gas. What is the maximum amount of nitrogen monoxide that can be formed? What amount of the excess reagent remains after the reaction is complete?
October 21, 2012 by kim

CHEMISTRY
A student combusted 0.500g of purified aluminum power with excess oxygen in an oxygen atmosphere according to the reaction, 4Al(s) + 3O2(g)= 2Al2O3(s) A) What is the limiting reactant? B) How many moles of Al were used? C) How many moles of Al2O3 would form, based on the moles...
October 29, 2014 by Gina

chemistry
write the balanced equation for the reactions of aquesous pb(CIO3)2 with aqueous Nal. include phases. 2.If a solution containing 86.044 g of mercury(II) chlorate is allowed to react completely cointaing 15.4888 g of sodium sulfide, how many grams of solid precipate will be ...
September 24, 2013 by christina

chemistry
The reaction between solid sodium and iron(III) oxide is one in a series of reactions that inflates an automobile airbag. 6 Na(s) + Fe2O3(s) 3 Na2O(s) + 2 Fe(s) If 171.0 g Na and 213.5 g Fe2O3 are used in this reaction, what is the mass of excess reactant that remains after ...
February 7, 2010 by tg

Chemistry
The reaction between solid sodium and iron(III) oxide is one in a series of reactions that inflates an automobile airbag. 6 Na(s) + Fe2O3(s) 3 Na2O(s) + 2 Fe(s) If 171.0 g Na and 213.5 g Fe2O3 are used in this reaction, what is the mass of excess reactant that remains after ...
February 9, 2010 by tdb

Chemistry
How much hydrogen and oxygen must react to produce 65.00 grams of water? 2H + O2 -> 2H2O
October 13, 2010 by Brooke

chemistry
what mass of water is needed to react with 10.0 grams of PI3?
October 19, 2009 by william

Chemistry 111
how many grams of water are needed to react with 80.0g CaCn2?
July 14, 2011 by kisha

chemistry
How many grams of glycolic acid are needed to react with 30 mL of 0.1 M NaOH?
July 2, 2014 by Kris

chemistry
Please let me know if my equation is correct,taken from the following word problem. If you react Iron(111)oxide with carbon monoxide,you will produce liquid iron and carbon dioxide. Fe2O3 + CO --> Fe + CO2. If I'm correct..how do I balance this. Thanks for your help.
October 30, 2010 by Cliff

Chem
Calculate the number of grams of Fe formed when 0.300kg of Fe2O3 reacts. Equation: Fe2O3+CO-->Fe+CO2 converted .300kg to 300g Balanced Fe2O3+3CO-->2Fe+3CO2 So I started by trying this: 300gFe2O3(1molFe2O3/159.687gFe2O3)...and then I don't know where I would go from there...
September 16, 2012 by Ezra

Chmistry
For the following reaction, 4.35 grams of hydrogen gas are allowed to react with with 10.3 grams of ethylene (C2H4). hydrogen (g) + ethylene (C2H4) (g) ethane (C2H6) (g) What is the maximum amount of ethane (C2H6) that can be formed? grams What is the FORMULA for the limiting ...
December 4, 2010 by Austin Jekins

Chmistry
For the following reaction, 4.35 grams of hydrogen gas are allowed to react with with 10.3 grams of ethylene (C2H4). hydrogen (g) + ethylene (C2H4) (g) ethane (C2H6) (g) What is the maximum amount of ethane (C2H6) that can be formed? grams What is the FORMULA for the limiting ...
December 4, 2010 by Austin Jekins

Chemistry
Please help with these 2 stoichiometry questions. How many grams of NH3 can be produced from 3.98 mol of N2? How many grams of H2 are needed to produce 10.41g of NH3?
September 27, 2010 by Sarene

Chemistry
When 320.62 grams of Bi2O3 react with excess of C, how many moles of Bi form? I know I need to use stoichiometry, but I can't quite seem to get the correct balanced equation.
June 30, 2011 by Brooke

Chemisty
For the reaction SO3 plus H2O>>H2SO4, calculate the percent yield if 500.g of sulfur trioxide react with excess water to produce 575g of sulfuric acid??
March 18, 2008 by Whittney

Chemistry
a)How many grams of NH3 can be produced from 2.84mol of N2. b)How many grams of H2 are needed to produce 14.86g of NH3? balanced equation: 3H2+N2->2HN3
September 21, 2010 by Amy

Chem
calculate the mass in grams of carbon needed to produce 160 grams of CO2 burning. C + O2 -> CO2
December 15, 2011 by Amber

Chemistry
Iron metal is formed during the reduction of iron(III) oxide: Fe2O3 + 3CO 2Fe + 3CO2 When 24.3 kg of Fe2O3 react with 14.6 kg of CO and 7.8 kg of Fe are recovered, what is the percent yield for the reaction? Pls.. help I am having a hard time finding the answer. The wordings ...
April 13, 2011 by komal

Science
NaBR+ AgNO3- AgBr+ NaNO3 AgNO3=reagent A NaBr=reagent B When 4.36 grams of AgNO3 react with 5.05 grams of NaBr, which is the limiting reagent? How many grams of the excess reagent remain? How many grams of AgBr are produced in the reaction?
October 5, 2007 by Raz

Chemistry-Equation
How many liters of hydrogen gas are needed to react with CS2 to produce 1.25 L of CH4 at STP?
March 5, 2010 by meg

Chemistry
How many grams of Mg are needed to react completely with 3.80 L of a 2.50 M HF solution? Mg + 2HF --> MgF^2 + H^2
April 6, 2011 by Lexa

Chemistry
How many grams of Mg are needed to react completely with 3.80 L of a 2.50 M HF solution? Mg + 2HF MgF2 + H2
June 9, 2011 by Ashley

Chem 10
How many grams of NaOH would be needed to react with 199g of HCl?
June 24, 2011 by Renea

chemistery
how many grams of NaOH are needed to react with two moles of H2SO4
July 1, 2012 by erika

chem
For the following reaction, 31.1 grams of diphosphorus pentoxide are allowed to react with with 10.2 grams of water. diphosphorus pentoxide (s) + water (l)>>> phosphoric acid (aq) What is the maximum amount of phosphoric acid that can be formed in grams? What is the ...
May 15, 2011 by moose

Chemistry
If Chelcy and Allyson reacted 2.55 grams of Mg with excess hydrochloric acid (HCl), how many grams of MgCl2 will they theoretically produce? Mg(s) + HCl (aq) → H2 (g) + MgCl2 (aq) ?g MgCl2
January 31, 2013 by star

Chemistry
Cl2+3F2 -> 2ClF3 how many grams of ClF3 form when .204 moles if F2 react with excess Cl2?
July 26, 2011 by Crystal

Chemistry
3Ca(NO3)2(aq)+2Na3PO4(aq)->Ca3(PO4)2(s)+6NaNO3(aq) A.)the moles Na3PO4 required to react with 2.03 L of 0.891 M Ca(NO3)2 B.)the grams of Ca3(PO4)2 that can be obtained from 136 mL of 0.627 M Ca(NO3)2 C.)the volume of 0.76 M Na3PO4 needed to react with 25 mL of 0.79 M Ca3(...
December 10, 2010 by Anonymous

stoichiometry problem
how many grams of oxygen gas are needed to react with 5.7 moles of phosphorus
June 7, 2010 by mimi

chemisty
how many grams of Na are needed to react with H2O to liberate 400mL of H2 gas at STP?
December 8, 2010 by justin

Chemistry
How many grams of acetic anhydride are needed to react with 3.82g of salicylic acid?
April 23, 2014 by Nicole

chemistry
consider the following balanced chemical reaction: 2 Col3+3 K2S-> Co2S3+6 Kl assuming all that can react will react, how many grams of cobalt (III) sulfate will form when 1318.89 grams of cobalt (III) iodide are combined with 551.35 grams of potassium sulfide?
October 11, 2010 by kayla

Chemistry
Assume that a reaction occurs in which unknown substances R and S react to form unknown substances T and U. From the information below, determine the mass of substance T that will be formed if 45.0 grams of substance R reacts with 23.0 grams of substance S. (Assume that the ...
May 20, 2008 by Daniel

chemistry Emergency TEST
1.How many moles of sodium oxide are produced when3.9 moles of sodium combine with excess oxygen. 2. Sodium chloride decomposes into elemental sodium and elemental chlorine.How many grams of chlorine will be produced if 39.4 grams of sodium chloride decomposes 3.If 6.7 moles ...
February 14, 2013 by Christian

chemistry
10. If the calcium oxide were obtained by the heating of calcium hydroxide, how much hydroxide would be needed to obtain the 15.0 g? 11. If the 15.0 g of calcium oxide in the above problems were allowed to react with water, what amount of calcium hydroxide would be produced? ...
December 13, 2012 by greg

chemistry
How many grams of zinc must react with HCl in order to produce 4.35 liters of hydrogen gas, measured at STOP?
August 31, 2011 by Devin B

Chemistrt
How many grams in 4.00 moles of Fe2O3? Answer 4 Moles Mass = 159.7 grams 4 X 159.7/1 = 6.388 or 6.39 grams. How do you get 6.39X102grams? Fe is +2 and O is 2. you have 2-Fe and 3-O why would this not be 6.39X10-2 grams
December 6, 2009 by Paul

chem
how many grams of hydrogen chloride is needed to produce 200 grams of hydrogen
January 11, 2011 by ashley

Chemistry
How many grams of NH3 can be produced from 3.26 moles of N2? How many grams of H2 are needed to produce 13.99 g of NH3?
November 6, 2011 by Natalie

Chemistry
How many grams of H2SO4 will be needed to react with 69.3gof NaOH? Can you list steps so I can understand this? Thanks
October 24, 2012 by Colleen

chemistry
how many grams of hydrogen are needed to completely react with 8 moles of nitrogen from this equation N2+H2=NH3
April 28, 2014 by tasha

chemistry
find the mass of water(H2O) needed to react with 150 grams of potassium(K)
October 27, 2014 by Teresa

Chemistry
A few questions...how many grams are in 48.7x10^24? I don't know how to convert atoms to grams. I can do moles to grams or moles to atoms, but not atoms to grams. My other problem is how do you convert moles to moles as in "how many moles of Cu2O are needed to produce 2.3 ...
April 20, 2009 by Angeline

Chemistry
Calculate the amount of 6 M nitric acid you need to add to fully react with .5 grams of copper and add a 20 percent excess.
September 11, 2011 by Jennifer

chemistry
What is the limiting reagent for 6HCl + Fe2O3 = 2FeCl3 + 3H2O ? 6HCl has 18.44 moles and Fe2O3 has 2.91 moles. Also how many moles would FeCl3 produce?
February 25, 2013 by Amber

chemistry
What is the limiting reagent for 6HCl + Fe2O3 = 2FeCl3 + 3H2O ? 6HCl has 18.44 moles and Fe2O3 has 2.91 moles. Also how many moles would FeCl3 produce?
February 25, 2013 by Amber

Chemistry
When a 1.350g sample of element X is heated in a stream of chlorine gas 6.67g of XCl3 are formed.1.) What(write) is a balance equation for the reaction using 'X' for the element? 2.) Calculate the atomic weight of X. 3.)What mass of X is left unreacted? 4.)When 1.00 grams of X...
December 9, 2010 by Joseph

Chemistry
When a 1.350g sample of element X is heated in a stream of chlorine gas 6.67g of XCl3 are formed.1.) What(write) is a balance equation for the reaction using 'X' for the element? 2.) Calculate the atomic weight of X. 3.)What mass of X is left unreacted? 4.)When 1.00 grams of X...
December 9, 2010 by Joseph

chemistry
Ammonia and oxygen react to form nitrogen and water. 4NH3(g)+3 O2(g)-2N2(g)+6H2O(g) a.How many grams of O2 are needed to react with 8.00 mol NH3? 8.00 mol NH3 x42.094/4 mol NH3 x32.00 O2/1 mol O2=269gO2
June 25, 2010 by Ana

chemistry
Ammonia and oxygen react to form nitrogen and water. 4NH3(g)+3 O2(g)-2N2(g)+6H2O(g) a.How many grams of O2 are needed to react with 8.00 mol NH3? 8.00 mol NH3 x42.094/4 mol NH3 x32.00 O2/1 mol O2=269gO2
June 25, 2010 by Ana

Chemistry
3NO2 + H2O = 2HNO3 + NO How many grams of nitrogen dioxide are required to produce 5.89 x 10 to the 3rd power kg HNO3 in excess water?
December 1, 2011 by Katelyn

chemistry
How many grams of 5.400 wt% aqueous HF are required to provide a 50% excess to react with 14.0 mL of 0.0236 M Th4+ by the following reaction? Th4+ + 4F - → ThF4 (s)
January 15, 2012 by john

Chemistry
Consider the following reaction: 4NH3 + 7O2 (arrow) 4NO2 + 6H2O. A) How many moles of NH3 react with 5.64 mol of O2? B)How many moles of NO2 are obtained from 3.27 mol of O2? C) How many moles H2O will be produced from 8.95 g of NH3? D)How many grams of NH3 will be needed to ...
June 30, 2014 by Apryl

chemistry
how many grams of H are needed to produce 1.80grams of H2O
March 5, 2010 by Anonymous

chemistry
How many grams of H2 are needed to produce 10.75g of NH3?
October 14, 2013 by kristy

Chemistry
How many grams of H2 are needed to produce 12.88g of NH3?
February 19, 2014 by Gullible

science
How many grams of oxalic acid dihydrate (H2C2O4) are needed to react with 38.56 ml of 0.2500 sodium hydorxide
March 31, 2011 by Stephanie

Chemistry
I need to find the volume of 5.44 molar nitric acid needed to completely react with 6.27 grams of Ca(OH)2.
February 29, 2012 by Jasmine

Physics
Question: The amount of internal energy needed to raise the temperature of .25 kg of water by 0.2 degrees Celsius is 209.3 J. How fast must a 0.25 kg baseball travel in order for its kinetic energy to equal this internal energy? KE = (.5)(m)(v^2) 209.3 J = (.5)(.25kg)(v^2) ...
February 15, 2010 by mike

Chemistry
SO3 + H2O = H2SO4 If you react 34 g of water and have excess SO3, how much H2SO4 would you theoretically produce
March 15, 2011 by Chrissy

Chemistry
SO3 + H2O = H2SO4 If you react 34 g of water and have excess SO3, how much H2SO4 would you theoretically produce?
March 15, 2011 by Anonymous

chemistry
Calculate how many grams of Cu are needed to produce 15L of NO(g). Please help
April 11, 2011 by Alyssa

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