$$\huge how \ many \ millilitres \ of \ 12 \ percent \ \huge (v/v) \ aqueous \ propyl \ \huge alchohal \ solution \ would \ you \ like \ \huge \to \ obtain \ 4.5 ml \ \huge \ of \ propyl \ alchohal$$

Question

$$\huge how \ many \ millilitres \ of \ 12 \ percent  \ \huge  (v/v) \ aqueous \ propyl \ \huge  alchohal \ solution \ would \ you \ like \ \huge \to \ obtain \ 4.5 ml \  \huge \ of \ propyl \ alchohal$$

anonymous · Answer

@lgbasallote @Chiomatn93

lgbasallote · Answer

???

anonymous · Answer

do you need the volume of 12% solution to get 4,5 ml solution of certain concentration?
if so equation is easy:
c1V1=c2V2
where index 1 is for concentrated solution and index 2 is for diluted solution...

anonymous · Answer

Thanks but didn't get you!

anonymous · Answer

ok if you dont get me could you elaborate what exactly data you have and what you need to calculate?

anonymous · Answer

lemme type that: How many millilitres of 12& (v/v) aqueous propyl solution would u take to obtain 4.5 ml of propyl alcohol

anonymous · Answer

and what is the concentration of that 4.5 ml propyl alcohol?!

anonymous · Answer

$${Volume} \over {Volume}  $$

anonymous · Answer

ok lets try again... you need to calculate what amount of 12% solution of propyl alcohol you need to take to get 4,5 ml of propyl alcohol, right? now only data you are missing is what concentration is that 4,5 ml of propyl alcohol, is it 50 % or 75% or 20 %??? you are going from 12% to what percent?! do you dilute it to 5% or concentrate it to 20%? do you get my question?