Answered: Q2: A- An aqueous solution contains 10%… | bartleby

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter4: Types Of Chemical Reactions And Solution Stoichiometry

Section: Chapter Questions

Problem 3RQ: Distinguish between the terms slightly soluble and weak. electrolyte.

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Q2: A- An aqueous solution contains 10% glucose (CH12O6) by weight. Find the
molefraction of both solute and solvent. ?
B- Distinguish between Lead Storage Battery and Lithium Battery?

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The first goal is to make the oxalic acid standard solution. You measure 1.5232 g of oxalic acid on an analytical balance, add it to a 250-mL volumetric flask and add deionized H2O to a final volume of 250.0 mL. Molar mass of H2C2O4•2H2O = 126.07 g/mol Mass of H2C2O4•2H2O = 1.5232g what is the Number of moles of H2C2O4•2H2O?
Calculate the final molarity of H2O2H2⁢O2 if 5.2 mL5.2 mL of a 3.0% w/w H2O23.0% w/w H2⁢O2 solution, which has a density of 1.0 g/mL,1.0 g/mL, is added to 5.2 mL5.2 mL of a starch-iodide solution.
A 500-mg tablet of commercial vitamin C tablet was dissolved in 50 mL water, treated with excess KI solution and 3 drops of starch solution. The solution required 4.8 mL of 0.05 M KIO3 to reach the endpoint. Calculate the % by weight of vitamin C in the tablet. (Molar mass of vitamin C = 172.16 g mol-1) IO3‐ + 5 I‐ + 6 H+ → 3 I2 + 3 H2O (1) I2 + C6H8O6 → C6H8O6* + 2 H+ + 2 I‐ (2) I2 + starch → (I2 - starch) (deep blue color) (3) *oxidized product of vitamin C
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