The K_b Value for Methylamine Is 4

question 121

Multiple Choice

The K_b value for methylamine is 4.2 × 10^-4.What is the pH of an aqueous solution for which the label reads "0.042 M CH₃NH₂"?

• A)2.4
• B)4.8
• C)9.2
• D)11.6
• E)12.3

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