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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

Chemistry
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
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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  • Write the balanced chemical equation of the reaction in your solutions sheet. What is the sum of all the coefficients of the balanced chemical equation?
  • Determine the pressure of the trapped gas inside the eudiometer in mmHg.
  • Determine the partial pressure of the collected CO2 in mm Hg.
  • How many millimoles of CO2 was collected?
  • What is the %purity of the sample to the nearest whole number (disregard the % symbol)?
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 Na,CO3 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 torr. Collection of CO2 that has displaced Eudiometer filled with water the water Burette Clamp Temperature Vapor Pressure of Water, PH,O |("C) 16 Stopper or Cork (Torr) 13.5 14.5 17 Bubbles of Liberated CO2" 18 15.5 19 20 21 22 16.5 17.5 18.7 Flask Tubing Ring Stand 23 24 25 26 27 28 19.3 21.1 22.4 23.8 25.2 26.7 28.3 Sample + HCI 500ml Beaker filled with water 29 30.0
Transcribed Image Text: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 Na,CO3 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 torr. Collection of CO2 that has displaced Eudiometer filled with water the water Burette Clamp Temperature Vapor Pressure of Water, PH,O |("C) 16 Stopper or Cork (Torr) 13.5 14.5 17 Bubbles of Liberated CO2" 18 15.5 19 20 21 22 16.5 17.5 18.7 Flask Tubing Ring Stand 23 24 25 26 27 28 19.3 21.1 22.4 23.8 25.2 26.7 28.3 Sample + HCI 500ml Beaker filled with water 29 30.0
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