We are asked to calculate the mass of 62.0 mL of ethanol given the density at room temperature of 0.789 g/mL.
We can calculate the mass of the fuel by using its volume and density:
Volume (density) → Mass
Volume = 62 mL
Density = 0.789 g/mL
What is the mass of 62.0 mL of ethanol? The density of ethanol at room temperature = 0.789 g/mL?
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