Question

what amount of water is required to make 10% of Ethanol in water solution using 10 ml of pure ethanol​

Answer 1

Answer:

Volume of ethanol = 10 ml

Volume of solution = 100 ml

Weight of ethanol = Volume×density

= 10×0.785

= 7.85 g

Weight of solution = 100×0.9866

= 98.66 g

Weight percent of ethanol =

98.66

7.85

×100

= 7.95%

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