Moles and Calculations MC

For the reaction 2H2 + O2 → 2H2O, how many grams of water are produced from 6.00 mol of hydrogen?

108 grams

For the reaction 2Na + 2H2O → 2NaOH + H2, how many grams of sodium hydroxide are produced from 3.0 mol of water?

120 grams

For the reaction SO3 + H2O → H2SO4, how many grams of sulfuric acid can be produced from 200. g of sulfur trioxide and 100. g of water?

245 grams

For the reaction 2Na + 2H2O → 2NaOH + H2, how many grams of hydrogen are produced if 120. g of sodium and 80. g of water are available?

4.5 grams

For the reaction CH4 + 2O2 → 2H2O + CO2, calculate the percent yield of carbon dioxide if 1000. g of methane react with excess oxygen to produce 2300. g of carbon dioxide.

83.88%

For the reaction Mg + 2HCl → H2 + MgCl2, calculate the percent yield of magnesium chloride if 100. g of magnesium react with excess hydrochloric acid to yield 330. g of magnesium chloride.

84.2%