Question

Example 3.5 Calculate the number of
particles in each of the
following:
( 46 g of Na atoms (number from
mass)
8 g 0, molecules (number of
molecules from mass)
(un) 0.1 mole of carbon atoms (number
from given moles)​

Answer 1

Explanation:

1) mole x avocadro's number x no of atoms

mole=mass/molar mass

mole=46/23 =2 mole

2x6.022x10²³x1

=12.022x10²³

2)