# What is the concentration of 10.00 mLof HBr if it takes 5 mL of a 0.253 M LiOH solution to neutralize it?

Dec 12, 2016

$\text{Concentration}$ $\cong$ $0.1 \cdot m o l \cdot {L}^{-} 1$

#### Explanation:

AS with all these problems, we need a stoichiometrically balanced equation:

$H B r \left(a q\right) + L i O H \left(a q\right) \rightarrow L i B r \left(a q\right) + {H}_{2} O \left(l\right)$

So, there is $\text{1:1 molar equivalence}$

$\left[H B r\right]$ $=$ $\frac{5 \times {10}^{-} 3 \cdot \cancel{L} \times 0.253 \cdot m o l \cdot {L}^{-} 1}{10.00 \times {10}^{-} 3 \cdot \cancel{L}}$ =??mol*L^-1