Question

Calculte the molarity: 40.5g of calcium chloride in 600.0 mL of solution

Answer 1

Number of Moles=Mass(g)/Molar Mass(g/mol)
40.5/(40.1)+(35.5*2)=0.364
Number of Moles=Concentration(mol/dm^-3)*volume(dm^3)
To Change ml to dm^3 we divide by 1000
0.364=600/1000*Concentration
600(Concentration)=1000*0.364
Concentration=1000*0.364/600=0.6075 mol/dm^3

Answer 2

Thank you!!!