Suppose that you add 28.9 g of an unknown molecular compound to 0.250 kg of benzene, which has a K f Kf of 5.12 oC/m. With the added solute, you find that there is a freezing point depression of 3.31 oC compared to pure benzene. What is the molar mass (in g/mol) of the unknown compound

If 10.g of agno3 is available, what volume of 0.25 m agno3 can be prepared

Which of the following statements is true about planck’s law

1. combine iron and copper (ii) sulfate solution. (hint: iron will form the iron (iii) ion) fe + cuso4 → 2. combine lead (ii) nitrate and potassium iodide solutions. pb(no3)2+ kl → 3. combine magnesium metal and hydrochloric acid solution. mg + hcl → 4. electrolysis (splitting) of water. h2o → 5. burning magnesium. mg + o2 →