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| 1. |
A mixture contains 23 g of ethanol and 36 g of water, some acetic acid is added to the mixture and its mole fraction becomes 0.5, how much acetic acid was added? |
| A. | 25 g |
| B. | 75 g |
| C. | 100 g |
| D. | 150 gView answer |
| Answer» E. | |