The number of atoms in 4.25 g of NH3 is
approximately
[CBSE PMT 1999; MH CET 2003]
(A) 1 x 1023
(B) 2 x 1023
(C) 4x 1023
(D) 6 x 1023
Answers
Answered by
0
Answer:
no of atoms will be D 6×10^23
Answered by
2
Answer:The answer is 6x10^23
Explanation:
The molecular weight of NH3 is 17
17g of NH3 6x10^23 molecules are present.
In 4.5 g of NH3 4.5x6x10^23/17 molecules are present.
In ome molecule 4 atoms are present.
In 4.5x6x10^23/17 molecules.
4.5x4x6x10^23/17 atoms are present.
By simplification,
No.of atoms present in 4.5 g of NH3 is 6x10^23.........
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