Question

how much water should be added to 20 ml of ethyl alcohol solution to reduce the concentration to 80%​

Answer 1

Answer:

Thus, you would have to add 80 ml of water to the 20 ml of 100% alcohol. This also assumes that the volumes are additive, which they usually aren't. If the original alcohol is, say, 95% (much more likely in real life), then ... Thus, you would have to add 75 ml of water (95 ml - 20 ml).

Step-by-step explanation:

hope it helps you !!!!!!!!!

Answer 2

Answer:

Thus, you would have to add 80 ml of water to the 20 ml of 100% alcohol. This also assumes that the volumes are additive, which they usually aren't. If the original alcohol is, say, 95% (much more likely in real life), then ... Thus, you would have to add 75 ml of water (95 ml - 20 ml).

Step-by-step explanation:

hope it helpfull you (✿^‿^)