You are supposed to mix 250 mL of a 0.1 M solution of Pb(NO3)2 solution. You would need to mix ______ g of Pb(NO3)2 with enough water to make 250 mL of solution.

Answer 1

How many mols do you need? That's M x L = ?
Then grams = mols x molar mass

Answer 2

Thank you for the help