CH3COOH和HCN的酸性那个强?
问题描述:
CH3COOH和HCN的酸性那个强?
答
CH3COOH强.
pKa(CH3COOH)=4.76,pKa(HCN)=9.21
CH3COOH的酸性比H2CO3强,而HCN的酸性比H2CO3弱