Question

If 100 mL of 0.50 M NaOH is diluted 5X, what is the concentration of NaOH in the diluted solution?

Answer 1

`[NaOH]_"final"=0.10*mol*L^-1`

Explanation:

Now concentration is given by the quotient...

`"Concentration"="Moles of solute"/"Volume of solution"`

And so here...

`underbrace(100xx10^-3*Lxx0.50*mol*L^-1*"NaOH(aq)")_"moles of solute"/underbrace(500*mLxx10^-3*L*mL^-1)_"volume of solution"=??*mol*L^-1`...

All I have is use the defining quotient to measure the concentration...