Question

What is the pH of a 0.00750 M solution of hydrochloric acid, HCl? (2 points) pH = 1.45 pH = 1.93 pH = 2.12 pH = 3.07

Answer 1

Ph = - Log (Hcl)

= - Log (0.00750)

= 2.12

Ph = 2.12

Answer 2

Answer: pH = 2.12

Step-by-step explanation:

pH or pOH is the measure of acidity or alkalinity of a solution.

pH is calculated by taking negative logarithm of hydrogen ion concentration and pOH is calculated by taking negative logarithm of hydroxide ion concentration.

`pH=-\log [H^+]`

`pOH=-log{OH^-}`

`pH+pOH=14`

Give :
`[H^+]` = 0.00750

`pH=-log[0.00750]`

`pH=2.12`