Answer :
I believe the answer is 20%.
The standard measurement that used to measure solution is the amount in mass of a component in a mixture per 100 unit of mass of the overall mixture
So, the calculation would be
%w/v = 2 g / 10 mL x 100%
= 20% w/v solution
The standard measurement that used to measure solution is the amount in mass of a component in a mixture per 100 unit of mass of the overall mixture
So, the calculation would be
%w/v = 2 g / 10 mL x 100%
= 20% w/v solution