There are 0.462 moles of atoms in 6.00 g of carbon-13.
<h2>Further Explanation:</h2><h3>Moles, Atomic mass and Molecular mass </h3>
- 1 mole of a pure substance contains a mass that is equal to the relative atomic mass or molecular mass of the substance.
- Therefore; molar mass is given as grams per mole of a substance
Molar mass = mass of a substance/ Number of moles
g/mol = g /mole
M = m/n; where M is the molar mass, m is the mass and n is the number of moles
- From this relationship we can therefore, calculate mass by multiplying the number of moles by molar mass of a substance.
- That is; Mass = moles x molar mass
- To calculate number of moles;
We have; n = m/M
- Number of moles = Mass of the substance/ Molar mass
In our case;
Mass = 6 g of Carbon-13
Molar mass = 13.0 g/mol
Since; Number of moles = Mass/ molar mass
Thus;
Moles = (6.0 g)/ (13.0 g/mol)
= 0.462 moles
Keywords: Moles, Molecular mass, relative atomic mass
<h3>Learn more about:</h3>
Level: High school
Subject: Chemistry
Topic: Moles
Sub-topic: Moles, molecular mass and mass of a pure substance