426 Answered Questions for the topic stoichiometry

Stoichiometry Science Chemistry Converting

04/04/16

Can someone please explain to me how to convert this?
1.Converting 1.22g of O2 to moles? 2.Converting 1.05g of H2 to moles?
Follows • 2
Expert Answers •2
Stoichiometry College Chemistry

03/23/16

How many moles of O2 are needed to oxidize 6.71 moles of CuFeS2 in the reaction 2 CuFeS2 + 5 O2 ———> 2 Cu + 2 FeO + 4 SO2
I really don't know how to do it I've tired and tried. I know how to balance, I have consistantly practiced but am getting no where. How many moles of O2 are needed to oxidize 6.71 moles of CuFeS2... more
Follows • 2
Expert Answers •1

03/16/16

A student heats magnesium to produce magnesium oxide.
A student heats magnesium to produce magnesium oxide. the reaction is below:Mg + O2 MgOShe starts wih 3.45 grams of magnesium and produces 5.65 grams of magnesium oxide. Calculate her theoretical... more
Follows • 2
Expert Answers •1

03/16/16

A student calculates the theoretical yield of their experiment is 4.89 grams
A student calculates the theoretical yield of their experiment is 4.89 grams. After carrying out the experiment, they only produced 4.21 grams of product in the lab. Calculate the percent yield... more
Follows • 2
Expert Answers •1
Stoichiometry Science Chemistry Lab

03/16/16

Chemistry Problem:stoichiometry
 Al+S8 -->Al2S3-How many moles of aluminum are required to produce 56.9 grams of sulfur?-5.0 grams of aluminum sulfide is needed. How many grams of sulfur is required to make it?
Follows • 2
Expert Answers •1

03/15/16

What is the theoretical yield of CuO?
What is the theoretical yield of CuO? -Experimental yield of Copper II oxide-1.4-Equation-CuCO3.Cu(OH)2 -->CuO + CO2+H2O
Follows • 2
Expert Answers •2

03/14/16

What is the theoretical yield of CuO?
What is the theoretical yield of CuO?   -Experimental yield of Copper II oxide-1.4 -Equation-CuCO3.Cu(OH)2 -->CuO + CO2+H2O
Follows • 3
Expert Answers •2
Stoichiometry Science Chemistry Lab

03/11/16

Stoichiometry Lab
CuCO3.Cu(OH)2--> CO2+H2O+2CuO How many grams of Copper II oxide are produced if you start with 1.01 g of Copper II carbonate.
Follows • 2
Expert Answers •2

03/10/16

Experimental yield lab
CuCO3 . Cu(OH)2 --> CO2+H2O + 2CuO How many grams of Copper II oxide are produced if you start wit 1.01 g of Copper II carbonate?
Follows • 2
Expert Answers •2
Stoichiometry Science Chemistry Units

03/10/16

Stoichiometry Problem
C2H4 + O2 → CO2 + H2O -If you start with 45 grams of ethylene (C2H4), how many grams of carbon dioxide should be produced?-Theoretically, how many liters of carbon dioxide will you produce if 55.3... more
Follows • 2
Expert Answers •1
Stoichiometry Science Chemistry Formula

03/10/16

stoichiometry problem
HCl + Na2SO4 → NaCl + H2SO4-If you start with 20.0 grams of hydrochloric acid, how many grams of sulfuric acid will be produced assuming there is 0% error?-How many moles of sulfuric acid should be... more
Follows • 2
Expert Answers •1
Stoichiometry Science Chemistry Lab

03/10/16

stoichiometry problem
Mg + NaF → MgF2 + Na-If you start with 5.5 grams of sodium fluoride, how many grams of magnesium fluoride will be produced if there is no error?-Determine how many formula units of sodium fluoride... more
Follows • 2
Expert Answers •1
Stoichiometry Science Chemistry Problem

03/09/16

Stoichiometry Problem
LiOH + HBr → LiBr + H2O -If you start with 10.0 grams of lithium hydroxide, how many grams of lithium bromide will theoretically be produced?-How many water molecules will you produce if you start... more
Follows • 2
Expert Answers •1
Stoichiometry

03/07/16

What is the limited and excess reactant
A solution of 25.0 grams potassium chromate reacts with a solution of 33.0 grams lead (||) nitrate to produce a yellow precipitate of lead(||) chromate and a solution of potassium nitrate. What is... more
Follows • 2
Expert Answers •1
Stoichiometry

03/05/16

What are the seven steps in Stochiometry
How to complete a stoichiometry graph using :actual yield, mole ratio, theoretical yield, balanced chemical reactions, percentage, percentage yield
Follows • 2
Expert Answers •1
Stoichiometry Chemistry

03/02/16

how do you know what product to use. For example if the reaction ends up with aluminum nitrate + copper why would you find copper instead of al(no3)
3CU(NO3)2 + 2AL ---->  2AL(NO3)2 + 3CUI am a little confused in Chemistry, I have a stoichiometry quiz tommorow and I get everything except when finidng limiting reactants..
Follows • 2
Expert Answers •1
Stoichiometry

02/16/16

Stoichiometry of gases 3 questions
5. How many grams of water can be produced from the complete reaction of 3.44 L of oxygen gas, at STP, with hydrogen gas?   6. How many liters of gaseous carbon monoxide at 27°C and 0.247 atm can... more
Follows • 2
Expert Answers •1
Stoichiometry

02/16/16

Stoichiometry of gases
1. Propane, C3H8, is a gas that is sometimes used as a fuel for cooking and heating. The complete combustion of propane occurs according to the following equation.C3H8(g) + 5O2(g) → 3CO2(g) +... more
Follows • 2
Expert Answers •1
Stoichiometry

02/15/16

stoichomtryof gases
5. What mass of sulfur must be used to produce 12.61 L of gaseous sulfur dioxide at STP according to the following equation?S8(s) + 8O2(g) ? 8SO2(g)
Follows • 2
Expert Answers •1
Stoichiometry

02/15/16

stoichiometry of gases
4. How many grams of calcium carbonate must be decomposed to produce 5.00 L of carbon dioxide gas at STP?
Follows • 1
Expert Answers •2
Stoichiometry

02/15/16

Stoichiometry of Gases
2. What volume of oxygen gas is needed to react completely with 0.626 L of carbon monoxide gas, CO, to form gaseous carbon dioxide? Assume all volume measurements are made at the same temperature... more
Follows • 2
Expert Answers •1
Stoichiometry Chemistry

02/12/16

stoichiometry question
A 1.81g sample of ZnS was reacted with 25.0 mL of a nitric acid solution that had a concentration of 0.836 mol/L. One of the products of this reaction is Sulphur. It was collected at the end of the... more
Follows • 2
Expert Answers •1
Stoichiometry Chemistry

02/11/16

grade 12 University level Chemistry
When a sample of a compound, XZO3 (s), is strongly heated, 3.469 g of oxygen gas and 4.225 g of XZ(s) are formed. When all of the XZ(s) was mixed with AgNO3 solution in a second reaction, all of... more
Follows • 2
Expert Answers •1
Stoichiometry Chemistry

02/11/16

grade 12 university chemistry question
A 1.81g sample of ZnS was reacted with 25.0 mL of a nitric acid solution that had a concentration of 0.836 mol/L. One of the products of this reaction is Sulphur. It was collected at the end of the... more
Follows • 2
Expert Answers •1
Stoichiometry

01/31/16

How do I figure out how many miles of CO are needed to react with 48.5 grams of Fe2O3?
how do I calculate how many miles of CO are needed to react with 48.5 grams of Fe2O3?
Follows • 2
Expert Answers •1

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.