ASA---STOICHIOMETRY

Directions : Solve the following Problems . Write all your answers on a separate sheet of paper.

1. What mass of Carbon dioxide is produced by the complete combustion of 100 g of the hydrocarbon pentane, C5H12?2. How many grams of Nitric acid HNO3 are required to produce 8.75 g of dinitrogen monoxide, N2O, according to the following equations?4 Zn + 10 HNO3 ------- 4 Zn (NO3)2 + N2O + 5 H2O3. Given the equation for the combustion of isopropyl alcohol ;

C3H7OH + O2 ------- O2 + H2OWhat is the mol ratio of :

a. carbon dioxide to isopropyl alcoholb. isopropyl alcohol to oxygenc. oxygen to carbon dioxided. water to isopropyl alcohole. carbon dioxide to waterf. water to oxygen5. How may moles of Cl2 can be produced from 5.6 mol HCl

4 HCl + O2 ----- 2 Cl2 + H2O6. Propane tanks are common place on recreational vehicles. The combustion of propane and oxygen produces CO2 and H2O. Calculate the a) mass in grams of H2O and b) mL volume of CO2 at STP from the combustion of 10.0 g of propane gas, C3H8.7. How many mL of CO2 gas at STP are liberated from the decomposition of 1.59 g of Lithium hydrogen Carbonate?8. How many mL of O2 gas at STP are released from the decomposition of 2.50 g of Mercuric oxide9. How many grams of Manganese(II) chloride must react with sulfuric acid to release 49.5 mL of hydrogen Chloride gas at STP?10. Given the unbalanced chemical equation , how many mL of CO2 gas at STP are produced from the decomposition of 1.59 g of ferric carbonate ?

Fe2 (CO3)3 → Fe2O3 + CO2

11. Given the unbalanced chemical equation, calculate the mass in grams of Zinc oxide that can be produced from 2.36 g of Zinc metal

Zn + O2 → ZnO

12. Given the unbalanced equation :Al4C3 + H2O → Al (OH) 3 + CH4

a.) How many moles of H2O are needed to react with 100 g of Al4C3? b.) How many moles of Aluminum hydroxide will be produced when 6 moles of methane is formed. 13. Ethane gas, C2H6 burns in air ( reacts with oxygen in air) to form CO2 and H2O.

2 C2H6 + 7 O2 → 4 CO2 + 6 H2Oa) How many moles of O2 are required to complete the combustion of 15 moles of ethane.b) How many grams of CO2 are produced for each 8 g of H2O produced?14. A 50 g sample of Calcium Carbonate is reacted with 35 g of Phosphoric Acid. Calculate :a). the number of grams of calcium phosphate that could be producedb) grams of CO2 produced