A #2.19*g# mass of potassium nitrate is dissolved in a #75*g# mass of water. What is it percentage concentration?

1 Answer
Aug 10, 2017

Answer:

#"% by mass"="mass of solute"/"mass of solute + solvent"xx100%~=3%#

Explanation:

#"% by mass"=(2.19*g)/(2.19*g+75*g)xx100%=?%#

The volume of this solution would not be much different to the volume of the starting solution. And the likely solvent is water.....