Question

Al(s) + HCl(aq) → AlCl3(aq) + H2(g) 2. According to the equation above, how many grams of aluminum are needed to completely react with 2.19 mol of hydrochloric acid? 3. Sulfur dioxide will react with water to form sulfurous acid SO2(g) + H2O(l) → H2SO3(l) What mass of sulfur dioxide is needed to prepare 27.86 g of H2SO3(l)? 4. The compound P4S3 is used in matches. It reacts with oxygen to produce P4O10 and SO2. The chemical equation is shown below. P4S3(s) + O2(g) → P4O10(s) + SO2(g) What mass of SO2 is produced from the combustion of 0.401 g P4S3? 5. How many moles of Mg3P2(s) can be produced from the reaction of 0.14 mol Mg(s) with 0.020 mol P4(s)? Mg(s) + P4(s) → Mg3P2(s) 6. A 5.95-g sample of AgNO3 is reacted with excess BaCl2 according to the equation AgNO3(aq) + BaCl2(aq) → AgCl(s) + Ba(NO3)2(aq) to give 4.48 g of AgCl. What is the percent yield of AgCl? 7. Sulfur hexafluoride is produced by reacting elemental sulfur with fluorine gas. S8(s) + F2(g) → SF6(g) What is the percent yield if 18.3 g SF6 is isolated from the reaction of 10.0 g S8 and 30.0 g F