Relationship between Mass of Zn and Volume of Hydrogen
Category: Stoichiometry and The Mole Concept
Relative mass of Mg atom
Define relative molecular mass.
Relative molecular mass is the average mass of one molecule of a substance compared to the mass of 1/12 of a carbon-12 atom.
Define relative atomic mass.
Relative atomic mass is the average mass of one atom of an element compared to the mass of 1/12 of a carbon-12 atom.
Write down the 3 formulas to find the number of moles of a substance.
No. of moles = Mass/ Mr or Mass/ Ar
No. of moles = Volume (dm3) x Concentration (mol/dm3)
No. of moles = Volume (dm3) / 24 dm3