CALCULATIONS (Show one sample calculation in your lab notebook; ie, one trial) 1. Use the ideal gas law to determine the number of moles of carbon dioxide gas in the flask. For the pressure, use AP. 2. Now take the number of moles of CO₂ calculated in (1) and add to it the moles of 8.5mg of CO₂ per 5mL of acid solution, which is assumed to be dissolved in the solution. This is the total amount of carbon dioxide produced (per trial). 3. Use your result in (2) and the stoichiometry of the balanced equation to find the mass of NaHCO3. g NaHCO3: (Triall) (Trial 2) (Trial 3) 4. Use the results from (3) and the mass of the portion of tablet used to calculate the mass percentage of NaHCO3 in your Alka-Seltzer preparation. Also give the average and the relative range. % NaHCO3: Average: (Triall) (Trial 2) Relative Range: (Trial 3)
CALCULATIONS (Show one sample calculation in your lab notebook; ie, one trial) 1. Use the ideal gas law to determine the number of moles of carbon dioxide gas in the flask. For the pressure, use AP. 2. Now take the number of moles of CO₂ calculated in (1) and add to it the moles of 8.5mg of CO₂ per 5mL of acid solution, which is assumed to be dissolved in the solution. This is the total amount of carbon dioxide produced (per trial). 3. Use your result in (2) and the stoichiometry of the balanced equation to find the mass of NaHCO3. g NaHCO3: (Triall) (Trial 2) (Trial 3) 4. Use the results from (3) and the mass of the portion of tablet used to calculate the mass percentage of NaHCO3 in your Alka-Seltzer preparation. Also give the average and the relative range. % NaHCO3: Average: (Triall) (Trial 2) Relative Range: (Trial 3)
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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Please please calculate problems 2, 3, and 4 using the data table provided if needed. For problem 2 the moles of CO2 is 0.00120 moles
Please answer fast it’s very urgent
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