Moles = Mass / Mr, would be the equation.
So the Mr of steam would be 18.02 (as it is H2O), then you just rearrange Moles = Mass / Mr to be: Mass = Moles * Mr
So the answer should be:
Mass = 0.25 * 18.02 = 4.505g
So the Mr of steam would be 18.02 (as it is H2O), then you just rearrange Moles = Mass / Mr to be: Mass = Moles * Mr
So the answer should be:
Mass = 0.25 * 18.02 = 4.505g
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