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

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Answer 1 · 2017-08-10T19:58:34

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

#"% 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.....

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