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1. |
A gas mixture input is given to a membrane with 20% O₂ and 80% N₂, the waste contains 60% of the input and the product contains 30% O₂ and 70% N₂, what are the number of moles of O₂ in the waste? |
A. | 1 |
B. | 2 |
C. | 3 |
D. | Can’t be determined |
Answer» E. | |