Among the compounds water, but-1-yne, but-2-yne, and ethane, which are stronger acids than ammonia?

Name: Among the compounds water, but-1-yne, but-2-yne, and ethane, which are stronger acids than ammonia?
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Quizplus · Accepted Answer

Water and but-1-yne are stronger acids than ammonia. Water has a pKa of about 15.7, and but-1-yne has a pKa of about 25, both of which are lower than ammonia's pKa of about 36, indicating they are stronger acids.

Among the Compounds Water, But-1-Yne, But-2-Yne, and Ethane, Which Are