1) What is the molarity of a solution that contains 20.0 g of calcium chloride, CaCl2, in 1200. mL of a solution? The molar mass of CaCl2 is 111.1 g.
Concentration= _______
2) How many mole of a sodium chloride, NaCL, in is 550 mL of 0.260 M NaCL? b) How many grams of NaCL is this? The molar mass of NaCL is 58.5.
a) Mole of a NaCl=
b) Mass of a NaCl=
3) What volume in millimeters of 3.50 M FeCl3 contains exactly 100. g of FeCl3? The molar mass of Fecl3 is 162.3 g.
Volume=
4) What mass of copper (II) sulfate, CuSO4, is needed to prepare 3.00 L of 0.250 M CuSo4? The molar mass of CuSO4 is 159.6 g.
Mass o CuSO4