For Nitrous Acid, HNO₂, K_a = 4

question 82

Multiple Choice

For nitrous acid, HNO₂, K_a = 4.0 × 10^-4. Calculate the pH of 0.33 M HNO₂.

• A) 2.92
• B) 1.94
• C) 3.40
• D) 0.48
• E) 4.36

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