# A 70% HCI solution has the strength of 35 mEq/mL. How many mL are needed to prepare 50 mEq?

Jun 23, 2017

Well.....$1.45 \cdot m L$

#### Explanation:

We take the quotient........

(50*cancel"mEq")/(35*cancel"mEq"*"mL"^-1)=1.43*1/(1/("mL"))=1.43*"mL"...

I think this is a chemically unreasonable concentration. Conc. $H C l$ as used in the lab is approx. $10 \cdot m o l \cdot {L}^{-} 1$ and is 38-40% $\frac{w}{w}$.

I would not want to handle hydrochloric acid of this concentration.