Question

How many moles are 5.42 x 1026 atoms of calcium?

Answer 1

There are 899.88 moles.

Step-by-step explanation:

To solve this problem we'll need to use Avogadro's number, which tells us that in one mole of a species, there are 6.023x10²³ atoms (or molecules).

With the above information in mind we can calculate the moles in 5.42x10²⁶ atoms of calcium:

• 5.42x10²⁶ atoms *
  `(1 mol)/(6.023x10^(23)atoms)` = 899.88 moles

Answer 2

Answer: 900.33moles

Explanation:Please see attachment for explanation