Solution Found!
Answer: The elemental analysis of an organic solid
Chapter 12, Problem 58P(choose chapter or problem)
The elemental analysis of an organic solid extracted from gum arabic (a gummy substance used in adhesives. inks, and pharmaceuticals) showed that it contained 40.0 percent C, 6.7 percent H, and 53.3 percent O. A solution of 0.650 g of the solid in 27.8 g of the solvent diphenyl gave a freezing- point depression of 1.56°C. Calculate the molar mass and molecular formula of the solid. (\(K_{f}\) for diphenyl is 8.00°C/m.)
Questions & Answers
QUESTION:
The elemental analysis of an organic solid extracted from gum arabic (a gummy substance used in adhesives. inks, and pharmaceuticals) showed that it contained 40.0 percent C, 6.7 percent H, and 53.3 percent O. A solution of 0.650 g of the solid in 27.8 g of the solvent diphenyl gave a freezing- point depression of 1.56°C. Calculate the molar mass and molecular formula of the solid. (\(K_{f}\) for diphenyl is 8.00°C/m.)
ANSWER:Step 1 of 4
From the given,
