Chemistry
Grade-10
Easy
Question
A pH of 3 is how many times more acidic than a pH of 5?
- 2
- 20
- 10
- 100
Hint:
A pH of 3 is a hundred times more acidic than a pH of 5.
The correct answer is: 100
- The pH scale in acids, bases, and salts is logarithmic in nature, which states that an increase or decrease in an integer number will result in a tenfold change in concentration.
- A pH of 3 is ten times more acidic than a pH of 4, for instance. Similar to how a pH of 3 is 100 times more acidic than a pH of 5, so is a pH of 5.
- A pH of 11 is also ten times more basic than a pH of 10, and vice versa.
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