Question

Calculate the pH of a 1.840 M solution of HNO3

Answer 1

Data:
log10(1.8) ≈ 0.25
Solving:

`pH = - log[H_(3) O^+]`

`pH = - log1.840 (mol/L)`

`pH = - log1.8*10^3`

`pH = 3 - 0.25`

`\boxed{\boxed{pH = 2.75}}\end{array}}\qquad\quad\checkmark`

Note:. The pH <7, then we have an acidic solution.