What is the concentration by volume if a solution is prepared by adding #25*mL# of #"ethyl alcohol"# to #125*mL# of water?

Answer 1

Approx. #17%# #"v/v"#..........

We (possibly reasonably) assume that the ethyl alcohol and water volumes are additive.

And thus........... #%"v/v"="Volume of ethyl alcohol"/"Volume of ethyl alcohol + volume of water"xx100%#
#=(25*mL)/(25*mL+125*mL)xx100%=??%#
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Answer 2

The concentration by volume of the solution is 16.67% ethyl alcohol.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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