Question

Calculate the number of moles in 3.0115 x 1023 atoms of calcium.​

Answer 1

Answer:

3.0115×1023 = 3080.7645

Answer 2

Answer:

0.5

Explanation:

for this problem, you need the avogadro number. it's a constant. the avogadro number tells you how many particles there are in a mole. that's why a mole is called the chemists dozen. 1 mole = 6.02 x 10^23, which is the avogadro number.

1 mole = 6.022 x 10^23 particles.

(3.0115 x 10^23) * (1/6.022 x 10^23) =

your answer will be 0.50008303 = 0.5 mole.