Answer:
1.48 × 10²⁴ atoms
Explanation:
Step 1: Calculate the moles of argon
Argon is a noble gas, whose molar mass is 39.95 g/mol. We will use this data to find the moles corresponding to 98.1 grams of argon.
[tex]98.1g \times \frac{1mol}{39.95g} =2.46 mol[/tex]
Step 2: Calculate the atoms of argon
In order to calculate the number of atoms of argon in 2.46 moles of argon, we have to consider the Avogadro's number: there are 6.02 × 10²³ atoms of Ar in 1 mole of Ar.
[tex]2.46mol \times \frac{6.02 \times 10^{23}atoms }{1mol} = 1.48 \times 10^{24}atoms[/tex]
