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Question

Calculate the number of KClO3 formula units present in 0.5 kilomoles of KClO3.

A
9.033×1026
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B
12.044×1023
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C
3.011×1026
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D
6.022×1026
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Solution

The correct option is C 3.011×1026
We know that,
1 mole of KClO3 formula units contain
=6.022×1023 formula units of KClO3
Therefore,
0.5 kilomoles of KClO3 formula units contain
=0.5×103×6.022×1023 formula units of KClO3
=3.011×1026 formula units of KClO3

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