Question

Calculate the molarity of 0.96g MgCl2 in 500mL solution

1. 0.96g MgCl2 = ? mol
2. 500mL = ? L
3. molarity = ?

Answer 1

The formula for molarity is #of moles/liters of solute

Answer 2

So..you get your moles.

your given mass is 0.96 grams

the formula Molar mass: 95.211 g/mol

Answer 3

0.96/95=?

Answer 4

Then just realize that 500 ml is 0.5 liters

so whatever your mole number is, consider it as "x"

x/0.5=molarity