Question

What is the volume of 15.0 gr of ethanol if the density is 0.78 g/mL

Answer 1

Answer: the volume of this ethanol sample is 19.2 mL

Step-by-step explanation:

The question requires us to determine the volume of a 15.0g sample of ethanol, given its density (0.78 g/mL).

Measurements > Density

The density of a substance is defined as the ratio between its mass and volume:

`density=(mass)/(volume)`

We can rearrange the equation above to calculate the volume given the mass of a sample and the density of the substance:

`volume=(mass)/(density)`

And, applying the values of mass and density given by the question, we'll have:

`volume=(15.0g)/(0.78g/mL)=19.2mL`

Therefore, the volume of this ethanol sample is 19.2 mL.