What volume (in mL) of a 0.270 M HNO3 solution will completely react with 40.2 mL of a 0.138 M Na2CO3 solution according to this balanced chemical equation?
Na2CO3(aq)+2 HNO3(aq)→2 NaNO3(aq)+CO2(g)+H2O(l)
I am really confused about solving this, I have only got 1 remaining attempt, and I have to finish it before 2 hours from now!