Question

If a mixture is 4.6 g of water and .5 g of copper chloride ,what is the percent composition of water?

Answer 1

The percent composition of water : 90.2%

Further explanation

The concentration of a substance can be expressed in several quantities such as moles, percent (%) weight / volume,), molarity, molality, parts per million (ppm) or mole fraction. The concentration shows the amount of solute in a unit of the amount of solvent.

mass of water = 4.6 g

mass of Copper chloride = 0.5 g

mass of solution :

`\tt mass~solution=mass~water+mass~Copper~chloride\\\\mass~solution=4.6+0.5\\\\mass~solution=5.1~g`

So the percent composition of water (%mass) :

`\tt \%water=(mass~water)/(mass~solution)* 100\%\\\\\%water=(4.6~g)/(5.1~g)* 100\%\\\\\%water=90.2\%`