The pH of a sample of lake water was originally 6 when measured in 1987. When measured again in 2014, the pH of the water was 4.
How has the concentration of hydrogen ions in the lake changed?
Answer:-
- The concentration of hydrogen ions has increased by a factor of 2.
In 1987 the ph of water is 6 means less acidic it means that the concentration of H ion in water is less
in 2014 the ph of water is 4 means the H ion increased that's why the water is acidic