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1. |
A mixture of gases SO2, O2 and 4 g of N2 and total mass of mixture is 10 g, what is the sum of mole fraction of SO2 and O2? |
A. | 0.25 |
B. | 0.5 |
C. | 0.75 |
D. | 1 |
Answer» D. 1 | |