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Practice. CO + 2H 2 → CH 3 OH. Using the equation above, 1) How many moles of hydrogen is used to create 2.75 mole of methanol? 2) What mass of carbon monoxide combines with .86 mole of hydrogen? 3) How many moles of carbon monoxide produce 56 g of methanol?
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CO + 2H2→ CH3OH Using the equation above, 1) How many moles of hydrogen is used to create 2.75 mole of methanol? 2) What mass of carbon monoxide combines with .86 mole of hydrogen? 3) How many moles of carbon monoxide produce 56 g of methanol? 4) What mass of methanol is formed from 3.25g of hydrogen?
Li3N + 3H2O → NH3 + 3LiOH • If 0.054 mole of lithium nitride is used, how many moles of lithium hydroxide are formed? • What mass of water is needed to completely react with 0.054 mole of lithium nitride? • If 36.0 g of water react, what mass of NH3 is formed? • If 3.8 grams of lithium nitride reacts, what mass of lithium hydroxide is formed?
Ca(OH)2 + 2HCl → CaCl2 + 2H2O If you have 6.3 g of Ca(OH)2 and 4.8 g of HCl, how many grams of CaCl2 are produced? What is the limiting reactant? What is the excess reactant?
4Al + 3O2→ 2Al2O3 • If 4.8 g of Al is placed into a container with 3.0 g of O2, what mass of product is formed? • What is the limiting reactant? • What is the excess reactant?
2ZnS + 3O2→ 2ZnO + 2SO2 • If 1.72 g of ZnS is heated in the presence of 3.04g of O2, which is the limiting reactant? • How many grams of ZnO are produced? • Which reactant is in excess?
2As2O3 + 3C → 3CO2 + 4As • If 8.87 g of As2O3 is used in the reaction and 5.3 g of As is produced, a) what is the theoretical yield? b) what is the percent yield?
Al(OH)3 + 3HCl → AlCl3 + 3H2O • If you start with 50.3g of Al(OH)3 and you make 39.5 g of AlCl3, a) what is the theoretical yield? b) what is the percent yield?