Question

How many atoms of carbon (C) are in 0.04 g of carbon?

Answer 1

`2.01x10^(21)atoms\ C`

Step-by-step explanation:

First, find the atomic mass of carbon (12.01
`(g)/(mol)`). Then use this value and Avogadro's number (
`6.022x10^(23)`) to convert grams to atoms:

`0.04g\ C((1\ mol\ C)/(12.01\ g\ C))((6.022x10^(23) atoms\ C)/(1\ mol\ C))=2.01x10^(21)atoms\ C`