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Part 5: Limiting Reactants & Percent Yield Stoichiometry ProblemsDirections: Complete the following problems. Be sure to show your work. Do your work on another piece of paper if needed.Metallic magnesium reacts with steam to produce magnesium hydroxide and hydrogen gas.Write the balanced equationIf 16.2 g of Mg are heated with 12.0 g of H2O, what is the limiting reactant?How many moles of the excess reactant are left?Determine the mass of each product formed.The black oxide of iron, Fe3O4, occurs in nature as the mineral magnetite. This substance can also be made in the laboratory by the reaction between red-hot iron and steam according to the following equation.____ Fe (s) + ____ H2O (g) ____ Fe3O4 (s) + ____ H2 (g)When 36.0 g of H2O is mixed with 167 g of Fe, which is the limiting reactant?What mass in grams of black iron oxide is produced?What mass in grams of excess reactant remains when the reaction is completed?Zinc and sulfur react to form zinc sulfide according to the following equation.____ Zn + ____ S8 (s) ____ ZnS (s)If 2.00 mol of Zn are heated with 1.00 mol of S8, identify the limiting reactant.How many moles of excess reactant remain?How many moles of the product are formed?Carbon reacts with steam at high temperatures to produce hydrogen and carbon monoxide.If 2.40 mol of carbon are exposed to 3.10 mol of steam, identify the limiting reactant.How many moles of each product are formed?What mass of each product is formed?Carbon disulfide burns in oxygen to yield carbon dioxide and sulfur dioxide.If 1.00 mol of CS2 is combined with 1.00 mol of O2, identify the limiting reactant.How many moles of excess reactant remain?How many moles of each product are formed?Sulfuric acid reacts with aluminum hydroxide by double replacement.Balance the following equation:____ H2SO4 + ____ Al(OH)3 ____ Al2(SO4)3 + ____ H2OIf 30.0 g of sulfuric acid reacts with 25.0 g of aluminum hydroxide, identify the limiting reactant.Determine the mass of the excess reactant remaining.Determine the mass of each product formed.What is the percent yield of water that is produced if the actual is 7.92 g.Copper (I) sulfide is produced when copper and sulfur are heated: ____ Cu (s) + ____ S (s) ____ Cu2S (s)What is the maximum amount of copper (I) sulfide that can be produced when 80.0 g of copper is heated with 25.0 g of sulfur? (hint: you need to first find the limiting reactant)Find the percent yield if 75.8 g of Cu2S product is actually formed in the experiment. ................
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