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AP.Chem: SAP‑10 (EU), SAP‑10.B (LO), SAP‑10.B.1 (EK), SAP‑10.C (LO), SAP‑10.C.1 (EK), SAP‑10.D (LO), SAP‑10.D.1 (EK)


A student prepares a buffer by combining samples of H, C, N, left parenthesis, a, q, right parenthesis and N, a, C, N, left parenthesis, a, q, right parenthesis. A particle view of the buffer solution is shown below. Water molecules and cations are not depicted.
Which of the following is true about the start text, p, H, end text of the buffer? (The start text, p, end text, K, start subscript, a, end subscript of H, C, N is 9, point, 21.)
Choose 1 answer: