A buffer contains significant amounts of a weak acid and a salt containing its c

Question

A buffer contains significant amounts of a weak acid and a salt containing its conjugate base. The acid consumes any added base, and the base consumes any added acid. In this way, a buffer resists A buffer contains significant amounts of a weak acid and a salt containing its conjugate base. The acid consumes any added base, and the base consumes any acid. In this way, a buffer resists pH change. Strong acids, strong bases, two bases, or two acids connot form a buffer on their own. change. Strong acids, strong bases, two bases, or two acids cannot form a buffer on their own.A buffer contains significant amounts of a weak acid and a salt containing its conjugate base. The acid consumes any added base, and the base consumes any added acid. In this way, a buffer resists A buffer contains significant amounts of a weak acid and a salt containing its conjugate base. The acid consumes any added base, and the base consumes any added acid. In this way, a buffer resists

Part A

Which set of compounds would form a buffer in aqueous solution?

NaBr & KBr

HCN & NaCN     

HF & KF

NaF & NaOH

HCl & NaCl

HCN & NaF

Part B

Identify the reaction that occurs when the acid HBr is added to the buffer solution.

HF(aq)+KBr(aq)

H2O(l)+KBr(aq)

HBr(aq)+KF(aq)

HF(aq)+KF(aq)

H2O(l)+KF(aq)

HF(aq)+HBr

Part C

Identify the reaction that occurs when the base KOH is added to the buffer solution.

HF(aq)+KBr(aq)

H2O(l)+KF(aq)

HF(aq)+KF(aq)

KOH(aq)+HF(aq)

H2O(l)+KBr(aq)

KF(aq)+KOH(aq)

Explanation / Answer

A buffer contains significant amounts of a weak acid and a salt containing its c

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