Answer:
4.97 moles
Explanation:
There are 6.022*10^23 calcium atoms in 1 mole of Ca
2.99*10^24/6.022*10^23
=4.97 moles
Answer:
4.97 mol
Explanation:
Given data:
Number of atoms of Ca = 2.99×10²⁴
Number of moles of Ca = ?
Solution:
The given problem will solve by using Avogadro number.
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance. The number 6.022 × 10²³ is called Avogadro number.
1 mole = 6.022 × 10²³ atoms
2.99×10²⁴ atoms × 1 mol / 6.022 × 10²³ atoms
0.497×10¹ mol
4.97 mol
