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2. Specialized equipment is needed to perform a titration. a. Consider the sodium hydroxide reactant. - Name the specialized device the sodium hydroxide is placed in. -- Is the concentration of the sodium hydroxide known or unknown? -- Is sodium hydroxide the analyte or the titrant? b. Consider the acetic acid reactant. What type of flask is the acetic acid placed in? -- What volume of acetic acid is used? What specialized device is used to obtain this precise volume? Is the acetic acid the analyte or the titrant?

2. Specialized equipment is needed to perform a titration. a. Consider the sodium hydroxide reactant. - Name the specialized device the sodium hydroxide is placed in. -- Is the concentration of the sodium hydroxide known or unknown? -- Is sodium hydroxide the analyte or the titrant? b. Consider the acetic acid reactant. What type of flask is the acetic acid placed in? -- What volume of acetic acid is used? What specialized device is used to obtain this precise volume? Is the acetic acid the analyte or the titrant?

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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1. Obtain a 50-mL burette, 5-mL volumetric pipette and a pipette bulb from the stockroom. Setting up the burette and preparing the NaOH 2. Rinse the inside of the burette with distilled water. Allow the distilled water to drain out through the tip in order to ensure that the tip is also rinsed. 3. Now rinse the burette with a small amount of NaOH (aq). To do this, add about 5-mL of NaOH (aq) to the burette, then twirl the burette on its side (over the sink) to rinse its entire inner surface. Then allow the NaOH (aq) to drain out through the tip. www Burette Pipette 4. Fill the burette with NaOH (aq) up to the top, between 0-mL and 5-mL. Use a funnel to do this carefully, below eye-level, and preferably over the sink. After this you will need to flush the tip of the burette - your instructor will show you how to do this. Now measure the volume at the level of the NaOH precisely, and record it as the "Initial Burette Reading" on your report. Also record the exact molarity of the NaOH (aq), which is labeled on the stock bottle. Preparing the vinegar sample 5. The volumetric pipette used in this lab is designed to measure and transfer exactly 5.00 mL of solution. First, rinse the inside of the volumetric pipette with distilled water. Using the pipette bulb, draw the water into the pipette up above the 5-mL mark, then allow it to drain out through the tip. You may want to do this several times for practice. Then perform a final rinse, but this time use vinegar. 6. Now use the volumetric pipette to transfer 5.00-mL of vinegar into a clean 250-mL Erlenmeyer flask (see instructions on page 4). Record this volume of vinegar (precise to two decimal places) on your report. Then add about 20-mL of distilled water and 5 drops of phenolphthalein to this Erlenmeyer flask.
Transcribed Image Text:1. Obtain a 50-mL burette, 5-mL volumetric pipette and a pipette bulb from the stockroom. Setting up the burette and preparing the NaOH 2. Rinse the inside of the burette with distilled water. Allow the distilled water to drain out through the tip in order to ensure that the tip is also rinsed. 3. Now rinse the burette with a small amount of NaOH (aq). To do this, add about 5-mL of NaOH (aq) to the burette, then twirl the burette on its side (over the sink) to rinse its entire inner surface. Then allow the NaOH (aq) to drain out through the tip. www Burette Pipette 4. Fill the burette with NaOH (aq) up to the top, between 0-mL and 5-mL. Use a funnel to do this carefully, below eye-level, and preferably over the sink. After this you will need to flush the tip of the burette - your instructor will show you how to do this. Now measure the volume at the level of the NaOH precisely, and record it as the "Initial Burette Reading" on your report. Also record the exact molarity of the NaOH (aq), which is labeled on the stock bottle. Preparing the vinegar sample 5. The volumetric pipette used in this lab is designed to measure and transfer exactly 5.00 mL of solution. First, rinse the inside of the volumetric pipette with distilled water. Using the pipette bulb, draw the water into the pipette up above the 5-mL mark, then allow it to drain out through the tip. You may want to do this several times for practice. Then perform a final rinse, but this time use vinegar. 6. Now use the volumetric pipette to transfer 5.00-mL of vinegar into a clean 250-mL Erlenmeyer flask (see instructions on page 4). Record this volume of vinegar (precise to two decimal places) on your report. Then add about 20-mL of distilled water and 5 drops of phenolphthalein to this Erlenmeyer flask.
2. Specialized equipment is needed to perform a titration. a. Consider the sodium hydroxide reactant. -- Name the specialized device the sodium hydroxide is placed in. -- Is the concentration of the sodium hydroxide known or unknown? -- Is sodium hydroxide the analyte or the titrant? b. Consider the acetic acid reactant. What type of flask is the acetic acid placed in? What volume of acetic acid is used? -- What specialized device is used to obtain this precise volume? -- Is the acetic acid the analyte or the titrant?
Transcribed Image Text:2. Specialized equipment is needed to perform a titration. a. Consider the sodium hydroxide reactant. -- Name the specialized device the sodium hydroxide is placed in. -- Is the concentration of the sodium hydroxide known or unknown? -- Is sodium hydroxide the analyte or the titrant? b. Consider the acetic acid reactant. What type of flask is the acetic acid placed in? What volume of acetic acid is used? -- What specialized device is used to obtain this precise volume? -- Is the acetic acid the analyte or the titrant?
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