How many mole of calcium (Ca) are in 9.00 x 1016 atoms of Ca?

Question

asked Jan 16, 2022 90.0k views

1 Answer

MirceaKitsune · Answer 1 · 2022-01-21T07:09:31+0000

Answer:

Number mole of calcium (Ca) = 1.4942 x 10⁻⁷ (Approx.)

Step-by-step explanation:

Given:

Number of atom in (Ca) = 9 x 10¹⁶

Find:

Number mole of calcium (Ca)

Computation:

Number mole of calcium (Ca) = Number of atom in (Ca) / Avogadro's number

Number mole of calcium (Ca) = (9 x 10¹⁶) / (6.023 x 10²³)

Number mole of calcium (Ca) = 1.4942 x 10⁻⁷ (Approx.)