PROBLEM SOLVING: REPORT QUANTITIES IN THEIR PROPER SIGNIFICANT FIGURES. NO NEED TO TYPE UNITS IN YOUR ANSWER. DO NOT ROUND OFF IN BETWEEN CALCULATIONS. The %purity of a powdered crude sample of Na2CO3 containing only inert impurities is to be determined by reacting 225.0 mg of the crude sample to 10.0 mL of 3.00 M HCI solution, and bubbling the resulting CO2(g) product in water that is at exactly 29 °C. After the reaction has completed, the level of the liquid inside the eudiometer rests 4.30 cm above the water level in the beaker. The graduation on the eudiometer indicates that the trapped gas is 44.37 mL. The experiment was done under a barometric pressure of 755.2 tor. Collection of CO2 *that has displaced Eudiometer filled with the water water Burette Clamp Temperature Vapor Pressure of Water, PH‚0 ("C) 16 17 Stopper or Cork (Torr) 13.5 14.5 15.5 16.5 17.5 Bubbles of Liberated CO2" 18 19 20 Flask Tubing Ring Stand 21 22 23 18.7 19.3 21.1 22.4 24 23.8 25.2 26.7 28.3 30.0 Sample + HCI 25 26 27 28 29 500ml Beaker filled with water

PROBLEM SOLVING: REPORT QUANTITIES IN THEIR PROPER SIGNIFICANT FIGURES. NO NEED TO TYPE UNITS IN YOUR ANSWER. DO NOT ROUND OFF IN BETWEEN CALCULATIONS. The %purity of a powdered crude sample of Na2CO3 containing only inert impurities is to be determined by reacting 225.0 mg of the crude sample to 10.0 mL of 3.00 M HCI solution, and bubbling the resulting CO2(g) product in water that is at exactly 29 °C. After the reaction has completed, the level of the liquid inside the eudiometer rests 4.30 cm above the water level in the beaker. The graduation on the eudiometer indicates that the trapped gas is 44.37 mL. The experiment was done under a barometric pressure of 755.2 tor. Collection of CO2 *that has displaced Eudiometer filled with the water water Burette Clamp Temperature Vapor Pressure of Water, PH‚0 ("C) 16 17 Stopper or Cork (Torr) 13.5 14.5 15.5 16.5 17.5 Bubbles of Liberated CO2" 18 19 20 Flask Tubing Ring Stand 21 22 23 18.7 19.3 21.1 22.4 24 23.8 25.2 26.7 28.3 30.0 Sample + HCI 25 26 27 28 29 500ml Beaker filled with water

EBK A SMALL SCALE APPROACH TO ORGANIC L

4th Edition

ISBN:9781305446021

Author:Lampman

Publisher:Lampman

Chapter2: Crystallization

Section: Chapter Questions

Problem 3Q

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