Question

HCl solution, about 250 mL in volume. The pH of the solution is 1.37. Calculate the molar concentration of HCl in this solution. Please use the scientific presentation of the numerical answers (i.e., 1.23x 102), and round your answers to two decimal places.

Answer 1

Answer:

Molar concentration of HCl in this Solution = 0.01 molar

Explanation:

Given pH = 1.37

So Concentration of H⁺ is equal to $10^{- 1.37}$ = 0.042 molar

Volume of HCl solution = 250 ml

Since,

             1000 ml solution contain 0.042 mole of HCl

              250 ml solution contain = $\frac{0.042 X 250}{1000}$ = 0.01 molar

Round off value = 0.01

Molar concentration of HCl in this Solution = 0.01 molar