pH: a Measure of Acidity (VCE SSCE Chemistry): Flashcards

Measures acidity/basicity of a solution

$1.00 \times 10^{-14}$ M$^2$

Water molecules reacting with each other to form ions

Water acts as both acid and base

$[\text{H}_3\text{O}^+] = [\text{OH}^-] = 10^{-7}$ M

$[\text{H}_3\text{O}^+] > 10^{-7}$ M

$[\text{OH}^-] > 10^{-7}$ M

$\text{pH} = -\log_{10}[\text{H}_3\text{O}^+]$

Neutral = 7, acidic < 7, basic > 7

Each unit = 10× change in $[\text{H}_3\text{O}^+]$