SOLUTION
The total amout of solution given is
[tex]\frac{2}{3}\text{liter}[/tex]
From thequestion, 1/2 of the solution is used, then the amount of solution used for the experiment will be
[tex]\frac{2}{3}\times\frac{1}{2}=\frac{2\times1}{3\times2}=\frac{2}{6}=\frac{1}{3}\text{liters }[/tex]
Hence
The amount of solution the scientist use is 1/3 litres
