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10 questions from this quiz
How much reactant needed or product formed
Moles=MassMr\text{Moles} = \frac{\text{Mass}}{M_r}Moles=MrMass
Calculate moles of given substance
Relative molecular or formula mass
Mass=Moles×Mr\text{Mass} = \text{Moles} \times M_rMass=Moles×Mr
18 g/mol
1:2
8 g
100 g/mol
2 g
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