Answer:
Mass = 2304 g
Explanation:
Given data;
Number of atoms of oxygen = 8.65×10²⁵
Mass in gram = ?
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.
For example,
1 mole = 6.022 × 10²³ atoms
8.65×10²⁵ atoms of oxygen× 1mol /6.022 × 10²³ atoms
1.44×10² mol
144 mol
Mass in grams of oxygen:
Mass = number of moles × molar mass
Mass = 144 mol × 16 g/mol
Mass = 2304 g
