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8 Heating potassium hydrogen carbonate results in a decomposition reaction that produces potassium carbonate, carbon dioxide and water. Write and Balance the reaction. How many moles of potassium carbonate will be produced if 108.88g of potassium hydrogen carbonate are heated? 9. One step in the isolation of pure rhodium metal (Rh) is the precipitation of rhodium(III) hydroxide from a solution containing rhodium(III) sulfate according to the following chemical equation: (Be sure to balance the reaction equation) Rh2(SO4)3(aq)+NaOH(aq)Rh(OH)3(s)+Na2SO4(aq) If 69.28g of rhodium(III) hydroxide is to be produced, what mass of rhodium(III) sulfate will be needed for the reaction? 10. Pure copper may be produced by the reaction of copper(I) sulfide with oxygen gas as follows: Cu2S(s)+O2(g)2Cu(s)+SO2(g) How many grams of copper metal is produced from the reaction of 0.630kg of copper(I) sulfide? If 450g of copper metal is actually obtained in the lab, what is the percent yield of this reaction? 11. If you react 86.5 grams of sulfuric acid with 362 grams of sodium hydroxide in a neutralization reaction. Which reactant would be the limiting reactant? What is the maximum possible amount of sodium sulfate will be produced? What is the amount of the excess agent still remaining after the reaction is complete? If 95.8 grams of sodium sulfate was obtained in this experiment, what is the percent yield for this reaction? 6. Hydrocarbons are used as fuels in daily life. How many moles of oxygen gas will be needed to burn 250.0g of propane? How many moles of carbon dioxide will be produced from this combustion reaction? How many grams of CO2? 7. Ammonia can be made from nitrogen gas and hydrogen gas. Write a balanced chemical equation for the synthesis of ammonia. If you want to make 500.0 grams of ammonia, how many grams of nitrogen gas will be needed to react with the excess hydrogen? How many grams of hydrogen will be needed