1. In step 8 of the procedure, is the pressure in the closed end of the system greater than, less than, or equal to the

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1 In Step 8 Of The Procedure Is The Pressure In The Closed End Of The System Greater Than Less Than Or Equal To The 1 (35.72 KiB) Viewed 18 times

1. In step 8 of the procedure, is the pressure in the closed end of the system greater than, less than, or equal to the atmospheric pressure? 2. In step 12 of the procedure, did the water level in the buret go up or down when you equal- ized the pressures? If you had neglected to equalize the pressures before taking the final volume, would your experimentally-obtained mass percent of NaHCO, be greater than, less than, or the same as if you had leveled the apparatus? Explain. 3. Calculate the mass percent of NaHCO, based on the manufacturer's list of ingredients: 325 mg aspirin, 1000 mg citric acid, 1916 mg NaHCO, a. Show your calculation for the mass percent of NaHCO,. b. Compare this value with your average mass percent of NaHCO, in Alka-Seltzer. How close was your experimental value to the mass percent calculated from the ingredients? Explain possible sources of error that could explain any differences.