6 years ago
To find out the mass needed you need to calculate the number of moles of the solute then the mass required for this preparation.
Molarity is the numer of moles of solute per liter of solution, thus C=n/V
hence n=CxV=0.450M x 250 x 10-3=0.1125 moles
Molar mass of CuSO4 is 160g/mole
n=m/M, m=nxM = 0.1125 x 160 = 18 g of CuSO4 are needed for this preparation.
6 years ago
Answered By Naim S
To find out the mass needed you need to calculate the number of moles of the solute then the mass required for this preparation.
Molarity is the numer of moles of solute per liter of solution, thus C=n/V
hence n=CxV=0.450M x 250 x 10-3=0.1125 moles
Molar mass of CuSO4 is 160g/mole
n=m/M, m=nxM = 0.1125 x 160 = 18 g of CuSO4 are needed for this preparation.