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English Translations » 化工分析圈 » 【Daily Question】Chemical Analysis Edition, 10/20/2019

【Daily Question】Chemical Analysis Edition, 10/20/2019

2019-10-20View Original

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This post was last edited by zjp on 2019-10-20 07:39. Those who are willing to take on responsibilities in managing industry regions are invited to reply at https://bbs.hcbbs.com/thread-2776127-1-1.html; there are generous monthly salary rewards available! Single-choice question: Among the following groups of substances, when mixed in equal amounts to form a solution, which one does not constitute a buffer solution? ( ) A、NaHCO3 and Na2CO3 B、NaCl and NaOH C、NH3 and NH4Cl D、HAc and NaAc B
Reply #22019-10-20
B, NaCl and NaOH

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Translated at 2026-07-23 10:40:36

Original: https://bbs.hcbbs.com/thread-2818368-1-1.html

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