3. Ascorbic acid (vitamin C, C6H&O6) is a water-soluble vitamin. A solution containing 80.5 g of ascorbic acid dissolved in 210 g of water has a density of 1.22 g/mL at 55 °C. Calculate (a) the mass percentage, (b) the molality, and (d) the molarity of ascorbic acid in this solution.

Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Please answer number 3

I. Solutions
1. Predict whether each of the following substances is more likely to dissolve in the nonpolar
solvent carbon tetrachloride (CCI4) or in water: C7H16 (an organic compound), Na2SO4, HCI, and
2. Explain.
2. In theory, a 1 m solution of ammonium sulfate will have a slightly higher boiling compared to
1 m solution glucose. Explain why.
3. Ascorbic acid (vitamin C, C6H8O6) is a water-soluble vitamin. A solution containing 80.5 g of
ascorbic acid dissolved in 210 g of water has a density of 1.22 g/mL at 55 °C. Calculate (a) the
mass percentage, (b) the molality, and (d) the molarity of ascorbic acid in this solution.
4. A dilute aqueous solution of an organic compound soluble in water is formed by dissolving 2.35
g of the compound in water to form 0.250 L of solution. The resulting solution has an osmotic
pressure of 0.605 atm at 25 °C. Assuming that the organic compound is a nonelectrolyte, what is
its molar mass?
II. RedOx
1. What is the difference between a voltaic cell and an electrolytic cell? Illustrate.
2. Compute for the oxidation number of the following elements.
a. C204²
b. B4O72
c. HCO3
d. S4O6²
Transcribed Image Text:I. Solutions 1. Predict whether each of the following substances is more likely to dissolve in the nonpolar solvent carbon tetrachloride (CCI4) or in water: C7H16 (an organic compound), Na2SO4, HCI, and 2. Explain. 2. In theory, a 1 m solution of ammonium sulfate will have a slightly higher boiling compared to 1 m solution glucose. Explain why. 3. Ascorbic acid (vitamin C, C6H8O6) is a water-soluble vitamin. A solution containing 80.5 g of ascorbic acid dissolved in 210 g of water has a density of 1.22 g/mL at 55 °C. Calculate (a) the mass percentage, (b) the molality, and (d) the molarity of ascorbic acid in this solution. 4. A dilute aqueous solution of an organic compound soluble in water is formed by dissolving 2.35 g of the compound in water to form 0.250 L of solution. The resulting solution has an osmotic pressure of 0.605 atm at 25 °C. Assuming that the organic compound is a nonelectrolyte, what is its molar mass? II. RedOx 1. What is the difference between a voltaic cell and an electrolytic cell? Illustrate. 2. Compute for the oxidation number of the following elements. a. C204² b. B4O72 c. HCO3 d. S4O6²
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