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3 Mg + 1 P → 1 Mg3P2 66 mol P = L Mg 66 mol P ? 3 mol Mg ? 1 mol P ? 22.4 L Mg ? 1 mol Mg ? 1 mol Mg = mol P = Round to tenth as needed L Mg mol Mg L Mg 2 K + 1 I2 → 2 KI 58.2 mol KI ? 58.2 mol KI = g I2 1 mol I2 2 mol KI ? 1 mol I2 ? 253.8 g I2 ? 1 mol I2 = mol KI = Round to tenth as needed g I2 mol I2 g I2 mol KI 3 Ca + 1 N2 → 1 Ca3N2 28.7 g K2S ? 47.3 L Ca3N2 ? 6 K + 1 P → 2 K3P 2 K + 1 S → 1 K2S 35.1 mol P ? 110.3 g K2S ? 1 mol K2S ? 22.4 L Ca3N2 ? 1 mol Ca3N2 ? 2 mol K3P ? 1 mol P ? 28.7 g K2S = particles S 47.3 L Ca3N2 = particles Ca 35.1 mol P = mol K3P 1 mol K2S 1 mol S 1 mol Ca3N2 3 mol Ca ? 6.022x1023 particles S ? 1 mol S ? 6.022x1023 particles Ca ? 1 mol Ca ? 4 Fe + 3 O2 → 2 Fe2O3 1.65 moles KClO3 ? 2.75 mol Fe ? 2 H2O → 2 H2 + O2 2 KClO3 → 2 KCl + 3 O2 12.6 mol H2O ? 2 mol Fe2O3 ? 4 mol Fe ? 1 mol O2 ? 2 mol H2O ? 2 mol KClO3 ? 3 mol O2 ? How many moles of O2 are produced when 12.6 molesof H2O reacts? Round to the tenths. How many moles of Fe2O3 are produced when2.75 moles of Fe react? Round to the tenths. How many moles of O2 will be formed from1.65 moles of KClO? Round to the tenths. = = = mol Fe2O3 mol O2 mol O2 4 Fe + 3 O2 → 2 Fe2O3 31 moles O2 ? 2 H2O → 2 H2 + O2 2 KClO3 → 2 KCl + 3 O2 3.5 moles KCl ? 55.7 moles H2 ? 2 mol Fe2O3 ? 3 mol O2 ? 2 mol H2O ? 2 mol H2 ? 2 mol KClO3 ? 2 mol KCl ? How many moles of Fe2O3 are produced when 31 moles of O2 react? Round to the tenths. How many moles of H2O are needed to produce55.7 moles of H2? Round to the tenths. How many moles of KClO3 are needed to make3.50 moles KCl? Round to tenths. = = = mol Fe2O3 mol KClO3 mol H2O 4 Fe + 3 O2 → 2 Fe2O3 8.9 moles Fe ? 2 H2O → 2 H2 + O2 2 KClO3 → 2 KCl + 3 O2 2.72 moles KClO3 ? 3.4 moles H2 ? 3 mol O2 ? 4 mol Fe ? 1 mol O2 ? 2 mol H2 ? 2 mol KClO3 ? 2 mol KCl ? If 3.4 moles of H2 is formed how much O2 is formed? How many moles of O2 are needed to react with8.9 moles of Fe? Round to the tenths. How many moles of KCl will be formed from2.73 moles KClO3? Round to tenths. = = = mol O2 mol KCl mol O2 4 Fe + 3 O2 → 2 Fe2O3 2 C4H10 + 13 O2 → 8 CO2 + 10 H2O 100 g C4H10 ? 2 KClO3 → 2 KCl + 3 O2 42.7 g Fe ? 3.76 g KClO3 ? 55.85 g Fe ? 1 mol Fe ? 58.14 g C4H10 ? 122.55 g KClO3 ? 1 mol C4H10 ? 1 mol KClO3 ? 4 mol Fe ? 2 mol Fe2O3 ? 2 mol C4H10 ? 8 mol CO2 ? How many grams of Fe2O3 are produced when42.7 grams of Fe reacts? Round to the ones 2 mol KClO3 ? Round to the ones. 3 mol O2 ? How many grams of O2 will be formed from3.76 grams of KClO3? Round to tenth. 159.7 g Fe2O3 ? 1 mol Fe2O3 ? 1 mol CO2 ? 44.01 g CO2 ? 1 mol O2 ? 32 g O2 ? How many grams of CO2 areproduced from the combustionof 100 grams of butane? = = = g CO2 g Fe2O3 g O2 4 Fe + 3 O2 → 2 Fe2O3 2 C4H10 + 13 O2 → 8 CO2 + 10 H2O 100 g C4H10 ? 2 KClO3 → 2 KCl + 3 O2 17 g O2 ? 30 g KCl ? 74.55 g KCl ? 1 mol O2 ? 1 mol KCl ? 32 g O2 ? 58.14 g C4H10 ? 1 mol C4H10 ? 2 mol Fe2O3 ? 2 mol KClO3 ? 3 mol O2 ? 2 mol KCl ? 2 mol C4H10 ? 13 mol O2 ? How many grams of Fe2O3 are produced when17 grams of O2 reacts? Round to the tenth. Round to the ones. How many grams of KClO3 are needed to make30 grams of KCl? Round to tenth. 122.55 g KClO3 ? 159.7 g Fe2O3 ? 1 mol Fe2O3 ? 1 mol KClO3 ? 1 mol O2 32 g O2 How many grams of O2 areproduced from the combustionof 100 grams of butane? = = = g O2 g Fe2O3 g KClO3 4 Fe + 3 O2 → 2 Fe2O3 2 C4H10 + 13 O2 → 8 CO2 + 10 H2O 2 KClO3 → 2 KCl + 3 O2 125 g Fe ? 2.73 g KClO3 ? 5.38 g O2 ? 55.85 g Fe ? 1 mol Fe ? 122.55 g KClO3 ? 1 mol KClO3 ? 32 g O2 ? 1 mol O2 3 mol O2 ? 4 mol Fe ? 10 mol H2O ? 13 mol O2 ? How many grams of O2 are needed to react with125 grams of Fe? Round to the tenth 2 mol KClO3 ? Round to the tenth 2 mol KCl ? How many grams of KCl will be formed from2.73 grams of KClO3? Round to tenth. 1 mol O2 ? 32 g O2 18.02 g H2O ? 1 mol H2O ? 74.55 g KCl ? 1 mol KCl ? How many grams of H2O areproduced when 5.38 g of O2react? = = = g H2O g O2 g KCl |