1) A large amount of an unknown metal reacts with 4.60 grams of Cl2 to produce 6.84 grams of a pure metal chloride. When the metal chloride is dissolved in a 100.0 ml solution, the concentration of metal ions is found to be 0.43 moles/L. What is the unknown metal?
2) Describe how you would make 500 mL of 0.150 M Na2SO4 given 1 kg of Na2SO4, a distilled water supply, a balance, anf a 500-mL volumetric flask.
3) Suppose that 400 mL of 0.0700 M BaCl2 is added to 800 mL of 0.0300 M BaCl2. Assume that the volumes are additive and calcualte the chloride ion concentration in the final solution