(40) GCSE Chemistry Revision "Calculating Moles of an Element"
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15 Terms
Mole
A very large number used in chemistry to represent a specific quantity of atoms or molecules.
Relative Atomic Mass
The mass of a single atom of an element, calculated from the average masses of the isotopes weighted for their abundance.
Equation for calculating moles
The number of moles equals the mass given in grams divided by the relative atomic mass.
Relative atomic mass of carbon
Relative atomic mass of oxygen
Relative atomic mass of magnesium
Relative atomic mass of calcium
Relative atomic mass of iron
Relative atomic mass of sulfur
How many moles are in 12 grams of carbon?
1 mole.
How many moles are in 16 grams of oxygen?
1 mole.
How many moles are in 48 grams of magnesium?
2 moles.
How many moles are in 120 grams of calcium?
3 moles.
How many moles are in 252 grams of iron?
4.5 moles.
How many moles are in 4,064 grams of sulfur?
127 moles.
