Question

Example 3.5 Calculate the number of
particles in each of the
following:
(i) 46 g of Na atoms (number from
mass)​

Answer 1

Answer:

46 g of Na atoms

Explanation:

The number of atoms

=given mass/molar mass× Avogadro number

⇒N=m/M×$No$

⇒N=4623×6.022×$10^{23}$

⇒N=12.044×$10^{23}$