The pH Scale (HSC SSCE Chemistry): Flashcards

'hydrogen power' or 'power of hydrogen'

0 to 14

7

Less than 7

Greater than 7

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

10-fold decrease in concentration

Mixture of indicators showing multiple colour changes

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

Only digits after decimal point