JEE Main Chemistry question
The pH of a solution obtained by mixing 10 mL of 0.1 M HCl and 40 mL of 0.2 M H₂SO₄ is:
Answer: (B)
Solution
mmol H⁺=1(HCl)+16(H₂SO₄)=17 in 50 mL → 0.34 M; pH=−log(0.34)=0.4685.
The pH of a solution obtained by mixing 10 mL of 0.1 M HCl and 40 mL of 0.2 M H₂SO₄ is:
mmol H⁺=1(HCl)+16(H₂SO₄)=17 in 50 mL → 0.34 M; pH=−log(0.34)=0.4685.