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ICSE Class 10 Chemistry 2019 Solved Paper

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Question : 22
Total: 86
The weight of 1022 atoms of carbon. [C=12., Avogadro's No. =6×1023]
Solution:  
If 6×1023 atoms have a weight
=12‌gm
then 1022 atoms have a weight
‌=‌
12×1022
6×1023

‌=‌
12
6×10
=‌
12
60
=0.20‌gm
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