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Anonymous users2024-01-24Contains O2 198 * 21 (21 + 78 + 1) 42 (m).
Contains N2 198*78 (21+78+1) 156(m).
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Anonymous users2024-01-23The volume of oxygen 198x21 99 = 42m3
The volume of nitrogen is 198x78 99 = 156 m3
The volume ratio of oxygen and nitrogen in the air is 21:78, and the living room of Lingling's house has 198 cubic meters, how many cubic meters of oxygen and nitrogen are there? The answer is as follows: The volume ratio of oxygen in the air to oxygen and nitrogen is 21 (21+78), therefore, the volume of oxygen in Lingling's house is 198*21 (21+78)=42 cubic meters, and the volume of nitrogen is 198-42=156 cubic meters. >>>More
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