A sample of cobalt (specific heat of Co = 0..418 J/g˚C) at 200.0˚C is dropped into a calorimeter containing 50.0 mL of water at 21.1˚C. The final temperature of the water/cobalt mixture was 67.1˚C. What was the mass of the sample of cobalt?

For each of the following compounds, write the formula then predict whether it would be a strong, weak, or non-electrolyte when placed in di water. for the ionic compounds only, put (s) or (aq) after the forrmula formula strong, weak or non electrolyte? a calcium hydroxide b. silver carbonate c. lead(ii) sulfate d. phosphorus trifluoride e. sodium phosphide f barium sulfate g. strontium acetate h. zinc nitrate