Question
How would I find the moles of H+ if I have 2.0 M HCl and 2.0 M NaOH solution?
Answers
DrBob222
If separate solutions, moles = M x L.
Sara
So, if I mixed them together, would I take the total volume of the solution and multiply it by 4 M, or just keep it as 2 M?
DrBob222
If you mix them, then
M HCl x L HCl = moles HCl
M NaOH x L NaOH = moles NaOH.
What's left depends upon how many moles of each solution we had. These react 1:1; therefore, larger moles - smaller moles = moles left, then H^+ or OH^- (depending upon which is in excess) = moles/total L.
M HCl x L HCl = moles HCl
M NaOH x L NaOH = moles NaOH.
What's left depends upon how many moles of each solution we had. These react 1:1; therefore, larger moles - smaller moles = moles left, then H^+ or OH^- (depending upon which is in excess) = moles/total L.