Question: Three students were asked to find the identity of the
Three students were asked to find the identity of the metal in a particular sulfate salt. They dissolved a 0.1472-g sample of the salt in water and treated it with excess barium chloride, resulting in the precipitation of barium sulfate. After the precipitate had been filtered and dried, it weighed 0.2327 g. Each student analyzed the data independently and came to different conclusions. Pat decided that the metal was titanium. Chris thought it was sodium. Randy reported that it was gallium. What formula did each student assign to the sulfate salt? Look for information on the sulfates of gallium, sodium, and titanium in this text and reference books such as the CRC Handbook of Chemistry and Physics. What further tests would you suggest to determine which student is most likely correct?
Answer to relevant QuestionsCharacterize strong electrolytes versus weak electrolytes versus nonelectrolytes. Give examples of each. How do you experimentally determine whether a soluble substance is a strong electrolyte, weak electrolyte, or ...For the reactions in Exercise 31, write the balanced molecular equation, complete ionic equation, and net ionic equation. If no precipitate forms, write “No reaction.” Exercise 31 A 1.42-g sample of a pure compound with formula M2SO4 was dissolved in water and treated with an excess of aqueous calcium chloride, resulting in the precipitation of all the sulfate ions as calcium sulfate. The precipitate ...Assign oxidation states to all of the following atoms. a. UO22+ b. As2O3 c. NaBiO3 d. As4 e. HAsO2 f. Mg2P2O7 g. Na2S2O3 h. Hg2Cl2 i. Ca(NO3)2 Answer the following questions, assuming that ms has four values rather than two and that the normal rules apply for n, ℓ, and mℓ. a. How many electrons could an orbital hold? b. How many elements would be contained in ...
Post your question