For  calculation of number of atoms we have to

  1. calculate the number of moles present in 1gram carbon.
  2. Multiply the number of moles with Avogadro number.

Step I

 Number of moles in 1 gram of carbon = given mass / molar mass

Molar mass (molecular or atomic mass expressed in grams) = 12g

So the number of mole= 1/12

                               = 0.0833 moles

Step II

1g of carbon will have = 0.0833 x 6.022 x 1023  

= 0.501 x 1023

1 gram of carbon will have = 5.01 x 1022   atoms


Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.