Question

) Calculate the number of moles for 52g of He
[Atomic Mass of He=40]​

Answer 1

Explanation:

Given,

Mass of helium = 52g

We know,

Molar mass = 40g

now,

no. of moles = given mass/ molar mass

no. of moles = 52/40

no. of moles = 13/10

Number of moles = 1.3

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