Question

Sulfur is a non-metallic element. It's presence in coal gives rise to acid rain phenomenon. How many atoms are in 16.3g of sulfur?

Answer 1

Answer:

Molar mass of sulphur = 32 g

No of atoms = given mass/molar mass

-> 16.3 / 32 = 0.509 moles

-> 0.509 * 6.022*10^23

= 3.067 * 10^23 atoms of sulphur.

Answer 2

Answer:

There are 3.065×$10^{23}$ atoms in 16.3 g Sulfur.

Explanation:

Given mass of Sulfur = 16.3 g

Molar mass of Sulfur = 32 g

And,

$No. of moles = \frac{Given mass}{Molar mass}$

$No. of moles = \frac{16.3 g}{32 g}=0.509$

And we know that, 1 mole = 6.022×$10^{23}$ atoms.

So the number of atoms in 0.509 moles =(0.509)(6.022×$10^{23}$ )

The number of atoms in 0.509 moles = 3.065×$10^{23}$.