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Nadya [2.5K]
3 years ago
15

What mass is in 5 moles of helium?

Chemistry
1 answer:
ArbitrLikvidat [17]3 years ago
3 0

Answer:

Mass = 20 g

Explanation:

Given data:

Number of moles of He = 5 mol

Mass of He = ?

Solution:

Formula:

Number of moles = mass/ molar mass

Molar mass = 4 g/mol

by putting values,

5 mol = Mass / 4 g/mol

Mass = 5 mol × 4 g/mol

Mass = 20 g

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