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A piece of Cu weighs 0.635 g. How many a...

A piece of Cu weighs 0.635 g. How many atoms of Cu does it contain?

Text Solution

Verified by Experts

No. Of moles of `Cu =("wt. Of Cu")/("at. Wt. Of Cu")`
`=(0.635)/63.5 = 0.01`
No. Of atoms of Cu = no. Of moles of atoms `xx` Av. Const
`=0.01 xx 6.022 xx 10^(23) = 6.022 xx 10^(23)`
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