how many millimetres of 12 %(v/v) aqueous propyl alcohol would you take to obtain 4-5 ml of propyl alcohol
Answers
Answer:
A solution's volume by volume percent concentration,
% v/v
, is a measure of how many milliliters of solute it contains in
100 mL
of solution.
In your case, a
12% v/v
solution will contain
12 mL
of solute for every
100 mL
of solution.
This means that in order to have
5.7 mL
of solute, you need to have
5.7
mL solute
⋅
100 mL solution
12
mL solute
=
48 mL solution.
−−−−−−−−−−−−−
Answer:
Explanation:
A solution's volume by volume percent concentration, % v/v, is a measure of how many milliliters of solute it contains in 100 mL of solution.
In your case, a 12% v/v solution will contain 12 mL of solute for every 100 mL of solution.
This means that in order to have 5.7 mL of solute, you need to have
5.7mL solute⋅100 mL solution12mL solute=48 mL solution−−−−−−−−−−−−−
The answer is rounded to two sig figs.