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

1.	A piece of Cu weighs 0.635 g. How many atoms of Cu does it contain?
Answer» <html><body><p></p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :No. Of moles of `Cu =("wt. Of Cu")/("at. Wt. Of Cu")` <br/> `=(0.635)/63.5 = 0.01` <br/> No. Of atoms of Cu = no. Of moles of atoms `xx` <a href="https://interviewquestions.tuteehub.com/tag/av-888878" style="font-weight:bold;" target="_blank" title="Click to know more about AV">AV</a>. <a href="https://interviewquestions.tuteehub.com/tag/const-11346" style="font-weight:bold;" target="_blank" title="Click to know more about CONST">CONST</a> <br/> `=0.01 xx 6.022 xx 10^(<a href="https://interviewquestions.tuteehub.com/tag/23-294845" style="font-weight:bold;" target="_blank" title="Click to know more about 23">23</a>) = 6.022 xx 10^(23)`</body></html>

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