3. In the characterization test, it was observed that Snl4 is soluble in acetone. What does this tell you about the ionic nature of this compound? Is the charge on the tin is actually +4? What was the effect of adding KI to the acetone solution? Prepation of tedide 3. Prepare a table comparing the physical properties (mp, bp, and density) of chlorides of C, Si, Ge, Sn, and Pb. Are there any general trends in the table? Explain.

20 E D The solubility of Cr(OH)3 is measured and found to be 1.27x10-6 g/L. Use this information to calculate a Ksp value for chromium(III) hydroxide. C Submit Answer F3 $ 4 000 000 R LL F V % 5 [Review Topics] [References] Use the References to access important values if needed for this question. T Retry Entire Group 9 more group attempts remaining G FS Cengage Learning | Cengage Technical Support A 6 MacBook Air Y H 87 & 4 Ksp F7 U J = * 00 8 ►|| B N M I 69 K ▶▶ F9 O V -0 L P > : 4) { 11 + V Next> Save and Exit 4) F12 delete

A sample of an iron ore was prepared for Fe3+ analysis as following: 3.4g of the sample was added anddissolved in acid environment then diluted to 250 mL using volumetric flask. After that, 10 mL of the resultingsolution was transferred by pipet to a 50-mL volumetric flask and continue to be diluted. The scientists foundout that this solution gives the concentration of Fe3+ as 2.3 mg/L. Find the weight percentage of Fe3+ in theoriginal sample.