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3 years ago

3. How many oxygen atoms are there in 5.0 mol of water?

Chemistry

1 answer:

faltersainse [42]3 years ago

3 0

Answer:

3.01 * 10^23 oxygen atoms

Explanation:

Water is H2O. So there are one oxygen atom for every molecule of water.

So in 5.0 mol of water molecules, there are 5.0 mol of oxygen atoms.

Since 5.0 mol = 5 * 6.02 * 10^23 molecules, there are 3.01 * 10^23 oxygen atoms.

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FinnZ [79.3K]

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3 years ago

If 71.5 moles of an ideal gas is at 5.03 atm at 6.80 °C, what is the volume of the gas?

meriva

Use the clapeyron equation:

T in kelvin : 6.80 + 273 => 279.8 K

R = 0.082

n = 71.5 moles

P = 5.03 atm

Therefore:

P x V = n x R x T

5.03 x V = 71.5 x 0.082 x 279.8

5.03 x V = 1640.4674

V = 1640.4674 / 5.03

V = 326.13 L

hope ths helps!

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3 years ago

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