(Viva Voce) Chap 9 Exercise 9 Question 4

Question 4: 
Alcohol and water are mixed in the ratio 1:4 by volume. If the volume of the solution is 600cm^3
(a) Find the volume of alcohol in the solution
(b) Find the volume of water in the solution
(c) how much alcohol must be added to the solution so that the ratio of alcohol to water in the solution becomes 1:3 by volume?


video

Sorry for the stuttering, i could not really see the writing while looking sideways at it

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