What are the 3 forms of the formula that links mass, Mr, and moles?

1mass = moles x Mr

2moles = mass ÷ Mr

3Mr = mass ÷ moles

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What do we mean by molar ratio?

The molar ratio is the ratio between the moles of different reactants and products in a balanced equation.


For example, in the following equation: N2+ 3H22NH3

The ratio of N2 : H2 : NH3 is 1 : 3 : 2

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