A gallon of water has a mass of 3.79 kg. How many moles of water (18.02 g/mol) is this?
A)0.210 mol
B)210 mol
C)68.3 mol
D)68,300 mol
E)386 mol

Name: A gallon of water has a mass of 3.79 kg. How many moles of water (18.02 g/mol) is this? A)0.210 mol B)210 mol C)68.3 mol D)68,300 mol E)386 mol
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Question

Quizplus · Accepted Answer

To find the number of moles, divide the mass of the water by the molar mass of water. $ \frac{3790 \, \text{g}}{18.02 \, \text{g/mol}} = 210 \, \text{mol} $.

A Gallon of Water Has a Mass of 3