Base your answers to questions 77 and 78 on the information below and on your knowledge of chemistry. In a laboratory investigation, a solution that contains 13.2 grams of Pb(NO3)2 reacts completely with a solution that contains 12.0 grams of NaI, producing 18.4 grams of PbI2 and an undetermined mass of a second product, NaNO3. This reaction is represented by the balanced equation below. Pb(NO3)2 + 2NaI → PbI2 + 2NaNO3 77 Identify the compound produced that is insoluble in water. [1] Answer-->PbI2 or lead(II) iodide |
78 Determine the mass of NaNO3 produced. [1] on to Questions 79-80 |