What would be the formula of the precipitate that forms when Pb(NO3)2 (aq) and K2SO4 (aq) are mixed? Chemistry Chapter 7 What would be the formula of the precipitate that forms when Pb(NO3)2 (aq) and K2SO4 (aq) are mixed? A) K(NO3)2 B) PbSO4 C) PbK2 D) H2O E) none of the above Answer: B Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+