Question

a solution contains 5 ml of alcohal in 70ml of water calculate the volume by the percentage of solution
​explain it full with process

Answer 1

Given :

⟶ Volume of alcohol = 5ml

⟶ Volume of water = 70ml

To Find :

➨ Percentage volume by volume concentration of solution.

Solution :

➠ Name : Volume percentage

➠ Symbol : %(v/V)

➠ Definition : Volume of solute in mL dissolved in 100mL of the solution.

➠ Effect of temperature : Changes with change in temperature.

➠ Formula :

$\bigstar\:\underline{\boxed{\bf{\%\dfrac{v}{V}=\dfrac{Volume\:of\:solute}{Total\:volume\:of\:solution}\times 100}}}$

$\dashrightarrow\sf\:\%\dfrac{v}{V}=\dfrac{5}{5+70}\times 100\\ \\ \dashrightarrow\sf\:\%\dfrac{v}{V}=\dfrac{5}{75}\times 100\\ \\ \dashrightarrow\sf\:\%\dfrac{v}{V}=\dfrac{5\times 4}{3}\\ \\ \dashrightarrow\underline{\boxed{\bf{\%\dfrac{v}{V}=6.67\%}}}\:\gray{\bigstar}$