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 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 a powdered crude sample 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. 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? Answer: Determine the pressure of the trapped gas inside the eudiometer in mmHg. Answer: Determine the partial pressure of the collected CO2 in mm Hg. Answer: How many millimoles of CO2 was collected? Answer: What is the %purity of the sample to the nearest whole number (disregard the % symbol)? Answer:

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 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 a powdered crude sample 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. 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? Answer: Determine the pressure of the trapped gas inside the eudiometer in mmHg. Answer: Determine the partial pressure of the collected CO2 in mm Hg. Answer: How many millimoles of CO2 was collected? Answer: What is the %purity of the sample to the nearest whole number (disregard the % symbol)? Answer:

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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D.2.