For Nitrous Acid, HNO₂, K_a = 4

question 42

Multiple Choice

For nitrous acid, HNO₂, K_a = 4.0  10^-4. Calculate the pH of 0.27 M HNO₂.

• A) 2.83
• B) 1.98
• C) 3.40
• D) 0.57
• E) 4.54

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