Chem Lab Report - battery acid that will require more than...

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Procedure: Part A) Calculate volume of NaOH required to prepare .250 liters of about 0.100 M NaOH solution. Then pour out the appropriate volume of 6.00 M NaOH solution into a 250 mL volumetric flask. Mix the solution well and fill flask to mark with distilled water. Obtain a 25.00 mL buret. Fill buret with base solution. Part B) Pour out about 40 mL of the .100 M H 2 SO 4 into dry beaker. Add about 20 mL of distilled water to a clean 125 mL Erlenmeyer flask. Pipette exactly 10.00 mL of the H 2 SO 4 into the flask. Add 4 drops of bromothymol blue indicator to turn the solution a pale yellow. Titrate with NaOH until solution turns blue. Make sure to record initial and final buret readings. Repeat two more times. Part C) Determine amount of battery acid needed to use for titration with base that is already standardized. Do not use a volume of
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Unformatted text preview: battery acid that will require more than 20 mL of base to reach equivalence point. Pour out enough battery acid solution into a beaker for each person in group to titrate it once. Pipette an exact amount of battery acid into a 125 mL Erlenmeyer flask and add distilled water to about 40 mL of solution. Add 4 drops of blue indicator. Titrate with standard NaOH until color changes yellow to blue as before. Clean out all supplies used. Part B: Buret Readings for Standardization of NaOH 1. Initial Reading 0.00 mL 1. Final Reading 21.20 mL 2. Initial Reading 0.00 mL 2. Final Reading 21.65 mL 1. Initial Reading 0.00 mL 1. Final Reading 21.85 mL 2. Initial Reading 0.00 mL 2. Final Reading 21.95 mL 3. Initial Reading 0.00 mL 3. Final Reading 21.95 mL Part C: Buret Readings for Battery Acid Titrations...
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Chem Lab Report - battery acid that will require more than...

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