JEE Main Chemistry question
Number of H⁺ ions present in 10 mL of a solution of pH=3 is:
Answer: (B)
Solution
[H⁺]=10⁻³ M; mol in 10 mL=10⁻⁵; ions=10⁻⁵×6.02×10²³=6.02×10¹⁸.
Number of H⁺ ions present in 10 mL of a solution of pH=3 is:
[H⁺]=10⁻³ M; mol in 10 mL=10⁻⁵; ions=10⁻⁵×6.02×10²³=6.02×10¹⁸.