2. 12.5 ml of 0.280M HNO3 and 5.0mL of 0.920M KOH are mixed. To make the resulting solution neutral, which of the following should be added?
-1.1 mol HCl
-1.69 mL of 0.650M HBr
-0.55 mmol Mg(OH)2
-2.2mL of 0.50M LiOH
-none of the above; already neutral
-KOH is in excess by 0.0011mol but if I divide by the molar mass of KOH I get 1.96*10^-5g. None of the answers are right, where do I take it from here?
1 answer
The excess is 0.001mol but this answer is in L so if you multiply it by 1000 to make your answer in mol/mL like the original question, you will get the answer 1.1mol/mL and that is the first choice: 1.1mol HCl.
2 answers