Question

How many moles of argongas contain 7.52 x 1022 Ar atoms? A) 0.125 mol ) 1.25 mol C) 0.0801 mol D) ON mol E) 0.0125 mol

Answer 1

Answer:

0.1248 moles

Explanation:

Data provided:

Number of atoms of argon gas = 7.52 × 10²² atoms

Now,

1 mole of argon gas contains 6.023 × 10²³ atoms

Thus, by the concept of the unitary method

1 atoms = (1 / 6.023 × 10²³) moles

therefore,

7.52 × 10²² atoms of argon will be contained by

= (1 / 6.023 × 10²³) × 7.52 × 10²² moles

= 0.1248 moles