Answer:
0.017 M
Explanation:
The reaction that takes place is:
First we calculate how many KOH moles reacted, using the given volume and concentration:
- 53.1 mL * 0.0048 M = 0.255 mmol
As 1 mmol of KOH reacts completely with 1 mmol of HNO₃, in 14.9 mL of the HNO₃ solution there were 0.255 HNO₃ mmoles.
With that in mind we can calculate the concentration of the HNO₃ solution using the calculated number of moles and given volume:
- 0.255 mmol / 14.9 mL = 0.017 M
