Question

10.0 ml of 1.00 m HCl neutralized 20.0 ml of a NaOH solution What was the molarity of the NaOH?

Answer 1

0.5M NaOH since there is an equation, C1V1 = C2V2, you know the concentration of HCl as 1.00M and volume as 10.0mL = 20.0mLx so x would be 1/2M to get it equal

Answer 2

Step-by-step explanation:

Molarity is defined as the number of moles divided by volume in liter.

Mathematically, Molarity =
`(no. of moles)/(volume in liter)`

But for two solutions or mixtures with equal number of moles the formula to calculate molarity will be as follows.

`M_(1)V_(1)` =
`M_(2)V_(2)`

`1.00 m * 0.01 l` =
`M_(2) * 0.02 l`

`M_(2)` = 0.5 m

Thus, we can conclude that the molarity of the NaOH is 0.5 m.