Question

Good day,
The temperature for each solution is carried out at approximately 297 K
where Kw=1.00×10−14
0.40 g of hydrogen chloride (HCl is dissolved in water to make 8.0 L of solution. What is the pH of the resulting hydrochloric acid solution?
Thanks

Answer 1

Solution.

$C(HCl) = \frac{m(HCl)}{M(HCl) \times V}$

C(HCl) = 0.00137 M

$pH = -lg([H^+])$

pH = 2.86

Answer:

pH = 2.86