Question

Q 17) Calculate number of atoms present in following cases :- a) 4 a.m.u of He b) 4g of He c) 4g atom of He ​

Answer 1

Answer:

a) 4 a.m.u of He = 1 atom.

b) 4g of He = NA or 6.022 × 10²³

c) 4g atom of He = 4NA

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Explanation:

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Answer 2

Answer:

Answer is here:-

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(a):- 4 amu of He = 1atom.

(b):- 4g of He= Na or 6.022×10²³.

(c):- 4g atom of He= 4Na.