Question

If it takes 30 mL of a 0.25M NaOH solution to neutralize 80 mL of a HCl solution, what is the Molarity of the HCl solution?

Answer 1

what kind of reaction is this?

Answer 2

It's a neutralization reaction. I think to solve it you need to use the M(a)V(a) = M(b)V(b) equation?

Answer 3

not quite, that formula is for dilutions.

you're basically finding the moles present in 30 mL of 0.25 M NaOH, then since you know they react in a 1-to-1 ratio (in terms of moles), find the molarity of the acid.

the only formula you have to use is

Molarity=moles/L of solution

Answer 4

Thank you so much!

Answer 5

no problem !