Question

308 molecules MnO4=- moles Mn04

Answer 1

Answer:

51.15 × 10²³ moles of MnO₄

Explanation:

Given data:

Number of molecules of MnO₄ = 308 molecule

Number of moles of MnO₄ = ?

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,

18 g of water = 1 mole = 6.022 × 10²³ molecules of water

1.008 g of hydrogen = 1 mole = 6.022 × 10²³ atoms of hydrogen

For 308 molecules of MnO₄:

308 molecules of MnO₄ × 1 mole / 6.022 × 10²³ molecules of MnO₄

51.15 × 10²³ moles of MnO₄