You have 1 mole of a substance, and it has a mass of 142 g. after some analysis, you determine that it is ionic, but you do not know what the substance is. All you do know of the formula is X2SO4. What is the density of the unknown substance, X?

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