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
Answer-->PbI2 or lead(II)
78 Determine the mass of NaNO3 produced.