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2. Why is it important that the color change occurs by the addition 8f a single ulUp! its effect on the calculated molarity of the acid. 3. Why is an Erlenmeyer flask preferred over a beaker when performing a titration? hydroxide was used in this experiment instead of sodium hydroxide. Assuming all

2. Why is it important that the color change occurs by the addition 8f a single ulUp! its effect on the calculated molarity of the acid. 3. Why is an Erlenmeyer flask preferred over a beaker when performing a titration? hydroxide was used in this experiment instead of sodium hydroxide. Assuming all

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 the actual molarity of the HCI solUlUII ITUII Include in your formal lab report this value and possible sources of error for your experiment. 2. Why is it important that the color change occurs by the addition of a single drop? Explain in terms of its effect on the calculated molarity of the acid. 3. Why is an Erlenmeyer flask preferred over a beaker when performing a titration? 4. Suppose calcium hydroxide was used in this experiment instead of sodium hydroxide. Assuming all experimental data was the same, what would be the molarity of the acid? Explain. 5. Suppose there was a large air bubble in the tip of the acid burette during the titration and it was dislodged toward the end of your titration. Explain the effect that this would have on the calculated value of the acid's molarity. 6. A student titrated 30.00 mL of a hydrochloric acid solution with 1.00 M sodium hydroxide. The sodium hydroxide was initially filled to the 2.30 mL mark on the burette. Once the level in the burette reached 50.00 mL, the student was forced to refill the burette and did so to the 5.06 mL mark. The endpoint was finally reached when the sodium hydroxide level dropped to 32.09 mL on the burette. What is the molarity of the acid solution? Show work. 7. How many milliliters of a 0.250 M sulfuric acid solution would be required to completely react with 2.398 grams of solid aluminum hydroxide? Work must be shown.
Transcribed Image Text:1. Obtain the actual molarity of the HCI solUlUII ITUII Include in your formal lab report this value and possible sources of error for your experiment. 2. Why is it important that the color change occurs by the addition of a single drop? Explain in terms of its effect on the calculated molarity of the acid. 3. Why is an Erlenmeyer flask preferred over a beaker when performing a titration? 4. Suppose calcium hydroxide was used in this experiment instead of sodium hydroxide. Assuming all experimental data was the same, what would be the molarity of the acid? Explain. 5. Suppose there was a large air bubble in the tip of the acid burette during the titration and it was dislodged toward the end of your titration. Explain the effect that this would have on the calculated value of the acid's molarity. 6. A student titrated 30.00 mL of a hydrochloric acid solution with 1.00 M sodium hydroxide. The sodium hydroxide was initially filled to the 2.30 mL mark on the burette. Once the level in the burette reached 50.00 mL, the student was forced to refill the burette and did so to the 5.06 mL mark. The endpoint was finally reached when the sodium hydroxide level dropped to 32.09 mL on the burette. What is the molarity of the acid solution? Show work. 7. How many milliliters of a 0.250 M sulfuric acid solution would be required to completely react with 2.398 grams of solid aluminum hydroxide? Work must be shown.
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