Solution Found!
Answer: For each precipitation reaction, calculate how many grams of the first reactant
Chapter 8, Problem 40P(choose chapter or problem)
For each precipitation reaction, calculate how many grams of the first reactant are necessary to completely react with 17.3 g of the second reactant.
(a) \(2 \mathrm{KI}(a q)+\mathrm{Pb}\left(\mathrm{NO}_{3}\right)_{2}(a q) \rightarrow \mathrm{PbI}_{2}(s)+2 \mathrm{KNO}_{3}(a q)\)
(b) \(\mathrm{Na}_{2} \mathrm{CO}_{3}(a q)+\mathrm{CuCl}_{2} \rightarrow \mathrm{CuCO}_{3}(s)+2 \mathrm{NaCl}(a q)\)
(c) \(\mathrm{K}_{2} \mathrm{SO}_{4}(a q)+\mathrm{Sr}\left(\mathrm{NO}_{3}\right)_{2}(a q) \rightarrow \mathrm{SrSO}_{4}(s)+2 \mathrm{KNO}_{3}(a q)\)
Questions & Answers
QUESTION:
For each precipitation reaction, calculate how many grams of the first reactant are necessary to completely react with 17.3 g of the second reactant.
(a) \(2 \mathrm{KI}(a q)+\mathrm{Pb}\left(\mathrm{NO}_{3}\right)_{2}(a q) \rightarrow \mathrm{PbI}_{2}(s)+2 \mathrm{KNO}_{3}(a q)\)
(b) \(\mathrm{Na}_{2} \mathrm{CO}_{3}(a q)+\mathrm{CuCl}_{2} \rightarrow \mathrm{CuCO}_{3}(s)+2 \mathrm{NaCl}(a q)\)
(c) \(\mathrm{K}_{2} \mathrm{SO}_{4}(a q)+\mathrm{Sr}\left(\mathrm{NO}_{3}\right)_{2}(a q) \rightarrow \mathrm{SrSO}_{4}(s)+2 \mathrm{KNO}_{3}(a q)\)
ANSWER:
Step 1 of 4
a) Given equation is
\(2 \mathrm{KI}(a q)+\mathrm{Pb}\left(\mathrm{NO}_{3}\right)_{2}(a q) \longrightarrow \mathrm{PbI}_{2}(s)+2 \mathrm{KNO}_{3}(a q)\)
Mass of second reactant \(\left(\mathrm{Pb}\left(\mathrm{NO}_{3}\right)_{2}\right)=17.3 \mathrm{~g}\)