3 years ago

When water evaporates, what happens to its molecules?

Chemistry

1 answer:

Scrat [10]3 years ago

7 0

It’s the first one: A. the water molecules stay the same they just change phase to a gas

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A chemist must prepare of 800.0 ml potassium hydroxide solution with a pH of 13.00 at 25Â°.

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The pH of the solution = 13.00

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$Molarity=\frac{Moles}{Volume(L)}$

$0.100 M=\frac{n}{0.800 L}$

n = 0.0800 mol

Mass of 0.0800 moles of KOH :

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4.48 grams is the mass of potassium hydroxide that the chemist must weigh out in the second step.

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