ICSE Class 10 Chemistry 2020 Solved Paper | Question 67

ICSE Class 10 Chemistry 2020 Solved Paper

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Calculate the percentage of :
in sodium aluminium fluoride [Na3AlF6], to the nearest whole number.
[Atomic Mass : Na=23,Al=27,F=19 ]

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Question : 67

Total: 86

Sodium

Solution:

Percentage of sodium
=‌

3×23

210

×100=32.85≃33%

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