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horsena [70]
3 years ago
15

PLEASE HELP ME!!! WORTH 20 POINTS!!!

Chemistry
1 answer:
svlad2 [7]3 years ago
5 0

Answer:

You need to heat the mixture to 78.37°C

Explanation:

In distillation, you can separate 2 or more compounds based on their difference in boiling points.

In a mixture of ethanol and water, in theory, you need to heat the mixture to 78.37°C. In this temperature, the ethanol must be evaporated and then condensed in the receiving flask.

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What is the pH of a 0.00530 M solution of HCI?
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Answer:

2.28

Explanation:

HCl(l) ===> H+ + cl-

HCl is a very strong acid. Almost all of it will decompose to the right. That means the concentration of H+ is 0.00530

pH = - log [H+]

pH = - log[0.00530]

pH = - - 2.2757

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