The number of atoms present in 4.25grams of NH3 is approximately:
A
6.02×1023
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B
1.5×1023
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C
24.08×1023
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D
0.5×1023
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Solution
The correct option is A6.02×1023 The number of moles present: 4.25g17g/mol Number of moles of atoms: 4.2517×4mol Number of atoms:4.2517×4×6.022×1023atoms =6.022×1023atoms