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3 years ago

What is the molar mass of AU with a mass of 35.12 g

Chemistry

1 answer:

shutvik [7]3 years ago

3 0

<span>Would it be 0.178?? i dont really know</span>

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Answer:

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Explanation:

Total pressure of the gases = p = 758 mmHg

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Pressure of hydrogen gas ,P = p - 23.78 mmHg = 758 mmHg - 23.78 mmHg

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Moles of hydrogen gas =n

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n = 0.03745 mol

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4 years ago

How many molecules are in 4.0 moles of propane (C3H8)

Lapatulllka [165]

Answer:

2.408x10^24 molecules

Explanation:

1mole of a substance contains 6.02x10^23 molecules.

This means that 1mole of C3H8 contains 6.02x10^23 molecules.

Therefore, 4moles of C3H8 will contain = 4 x 6.02x10^23 = 2.408x10^24 molecules

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3 years ago