Determine the number of moles in a sample of calcium that contains 6.34 x 1022
atoms.

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

We have the final answer as

Hope this helps you

1. they vary with a higher number because boiling is way hotter than melting

it's 3.2 on edge, i just took the test.