Question

The acidity model given by pH = -log10[H+] where acidity (pH) is a measure of the hydrogen ion concentration [H+] (measured in moles of hydrogen per liter) of a solution. Using this model, determine the pH of a solution with a hydrogen ion concentration of 2.3 X 10^-5 (round your answer to the nearest hundredth)

Answer 1

Answer:

Hydrogen ion concentration, [H+] :

${ \bf{[H {}^{ + } ] = 2.3 \times {10}^{ - 5} \: mol \: l {}^{ - 1} }}$

Substitute to the negative logarithmic model:

$= { \tt{ - log(2.3 \times {10}^{ - 5} ) }} \\ pH = 4.64$