Question

(Ans. 22.0 m)
7. The density of ethanol is 0.789 g mL-1 Find the mass of a sample of ethanol that has a volume of
150.0 mL.
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Answer 1

Answer: 118.35 g

Explanation:

Mass = Volume x Density

         = 150 x 0.789 g

         = 118.35 g

Answer 2

Answer:

188.35g ethanol

Explanation:

as we know to find mass of any thing we have to multiply it from it's volume and density , it will be done as the process shown below:-

mass= volume × density

        =0.789 × 150

        =188.35 g of ethanol