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English Translations » 化工分析圈 » 【Daily Question】May 3, 2018: Participation +2 Wealth； +3 to

【Daily Question】May 3, 2018: Participation +2 Wealth； +3 to +10 wealth for correct answers

2018-05-03View Original

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Fill-in-the-blank: 10 mL of sample gas containing CO and N2 is mixed with an excess of oxygen under standard conditions to completely burn the CO; as a result, the volume of the gas decreases by 2 mL. How many mL of CO is present in the sample gas? ( ). 4mL
Reply #22018-05-03
The question seems to be imprecise; if an excess of oxygen is introduced, the volume of the gas will not decrease, as it will be filled entirely by the excess oxygen.

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Translated at 2026-07-23 11:43:52

Original: https://bbs.hcbbs.com/thread-1978140-1-1.html

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