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Complete IIT AIEEE ICSE ISC PMT help forum

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Mole concept (IIT Question)

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ashleychan
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PostSubject: Mole concept (IIT Question) Thu Jun 18, 2009 12:22 am

Sry dat even tho im posting the question in class X even if it is class XII but im now gonna give Icse.
The dot at the endof this sentence has a mass of about one microgram. Assumingthat the black stuff is carbon, calculate the approximate number of atoms of carbon needed to make such a dot (1 microgram = 1 x 10^-6 g).
Try and help me if u can..
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ashleychan
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PostSubject: Re: Mole concept (IIT Question) Thu Jun 18, 2009 1:13 am

Its ok I solved it after a few failed attempts
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