1) C6H5COO- (aq) + HCN (aq) C6H5COOH (aq) + CN- (aq) 2) NO2- (aq) + HCN (aq)

NO2

C6H5COO

HCN

CN

HNO2

C6H5COOH
strongest acid

intermediate acid

weakest acid

not a Bronsted-Lowry acid

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