Question

number of molecules in 0.4g of He is??
A.6.022 ×10²³
B. 6.023×10²²
B. 6.022×10²²
D. 0.1​

Answer 1

Answer:

option b

Explanation:

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Answer 2

Answer:

B. 6.023×10²²

Explanation:

1 mole of He contains 6.023×10²³ atoms or molecules.

1 mole of He = 4g

= > 0.4g = 0.1 mole of He

therefore the 6.023×10²² molecules would be available.

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