Question

Calculate the number of moles in 52g of He (atomic mass of He is 4u)

Answer 1

Explanation:

Answer

13 moles

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Answer 2

Answer:

13 mol

Explanation:

Given :

We have given mass of He = 52 g

Molar mass of He = 4 g / mol

We are asked to find No. of moles :

We know :

No. of moles = Given mass / Molar mass

i.e. n = W / MM

Putting values here we get :

No. of moles = 52 / 4 mol

No. of moles = 13 mol

Hence we get required answer.

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