15.0 mL of 0.30 M sodium phosphate solution reacts with 20.0 mL of 0.22 M lead(II) nitrate solution. What is the concentration of phosphate ions left in solution after the reaction is complete?
A) 0.0 M
B) 0.045 M
C) 0.13 M
D) 0.060 M
E) 0.12 M
chem - DrBob222, Wednesday, December 15, 2010 at 12:43pm
Write and balance the equation.
moles Na3PO4 = M x L
moles Pb(NO3)2 = M x L
Determine which reagent is in excess, from that you go to the ppt formed and from that the amounts of reagents not reacted.
Post your work if you get stuck.
chem - Anonymous, Monday, May 25, 2015 at 9:43pm