[ilovechubkins]

If 25.0 mL of a 0.750 M Pb(ClO3)2 solution and 150.0 mL of a 0.125 M Na2SO4 solution were used in the reaction, then what was the concentration of sodium ions in solution AFTER the reaction?

Here's all I can do:
Pb(ClO3)2 + Na2SO4 --> PbSO4 + (ClO3)2 Na2

I'm really confused and stressed. I really appreciate your help. Thank you very much in advance.

[Dan]

Check the formula of sodium chlorate.

Check the solubility of the salts involved.

Determine moles of sodium in solution.

Determine volume of solution.

Calculate concentration.