Question

3.25*10^25 atoms of neon gas equals how many moles of neon gas?

Answer 1

Answer:

53.97 moles

Explanation:

First off, it is important to understand the following concepts;

Avogadro's number is a proportion that relates molar mass on an atomic scale to physical mass on a human scale.

Avogadro's number is defined as the number of elementary particles (molecules, atoms, compounds, etc.) per mole of a substance. It is equal to $6.022 * 10^{23}$ mol-1 and is expressed as the symbol NA.

Hence, the relationship between number of moles and number of atoms is given as;

1 mole = $6.022 * 10^{23}$ atoms

The question asks to find the number of moles $3.25 * 10^{25}$ atoms equals to.

so we have;

1 = $6.022 * 10^{23}$

x = $3.25 * 10^{25}$

upon cross multiplication, we are left with;

x = (1 * $3.25 * 10^{25}$ ) / $6.022 * 10^{23}$

x = 53.97 moles

Answer 2

Mole: the amount of a substance that contains 6.02 x 10. 23 respective particles of that substance. Avogadro's number: 6.02 x 10. 23. Molar Mass: the mass of one mole of an element. CONVERSION FACTORS: 1 mole = 6.02 x 10. 23 atoms 1 mole = atomic mass (g). Try: 1. How many atoms are in 6.5moles of zinc