If an air bubble in the buret containing the standard hydrochloric acid is discharged during the...
If an air bubble in the buret containing the standard hydrochloric acid is discharged during the analysis, would the reported “P” alkalinity remain unchanged, too high, or too low? Explain
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If an air bubble in the buret containing the standard
hydrochloric acid is discharged during the...
3. There is an air bubble in the tip of your buret, but you start the...
3. There is an air bubble in the tip of your buret, but you start the titration anyway. Some time during the course of the titration, the air bubble is dislodged and leaves the buret. Your final titration volume will be a) fine, the air bubble was not an issue b) too great, but the calculation should be ok c) too small, this titration is ruined d) too great, this titration is ruined
2. A 0.500-gram sample of a weak, nonvolatile monoprotic acid, HA, was dissolved in sufficient water...
2. A 0.500-gram sample of a weak, nonvolatile monoprotic acid, HA, was dissolved in sufficient water to make 50.0 milliliters of solution. The solution was then titrated with a standard NaOH solution. Predict how the calculated molar mass of HA would be affected (too high, too low, or not affected) by the following laboratory procedures. Explain each of your answers. A. (2 points.). After rinsing the buret with distilled water, the buret is filled with the standard NaOH solution; the...
explain the effect of each of thes following sources of error on the molarity of acetic...
explain the effect of each of thes following sources of error on the molarity of acetic acid as determined in this experiment stating whether the concentration of acetic acid obtained would be too high or too low. a. The buret is contaminated with an acid solution b. The buret contains a larger air bubble in the tip, which disappears in the course of a titration. c. A small volume of the acid solution is spilled when you transfer it into...
3. Consider the analysis of the ammonia content in this experiment. If the buret used in...
3. Consider the analysis of the ammonia content in this experiment. If the buret used in the titration was rinsed with distilled water, but not dried or conditioned before use, would the calculated number of moles of ammonia per gram of complex be too high, too low, or unaffected? Briefly Explain. If the titration flask was rinsed with distilled water but not dried before use, would the calculated number of moles of ammonia per gram of complex be too high,...
Suppose some of the solid calcium hydroxide is inadvertently transferred along with the supernatant liquid for...
Suppose some of the solid calcium hydroxide is inadvertently transferred along with the supernatant liquid for analysis. a.Will more. less, or the same amount of hydrochloric acid titrant be used for the analysis in .6? Explain. b.Will this inadvertent transfer increase, decrease, or have no effect on the calculated solubility product for calcium hydroxide? Explain. c.Will this inadvertent transfer increase, decrease, or have no effect on the calculated molar solubility of calcium hydroxide? Explain. 2. .6 Does adding beiled, deionized...
1. Assume that your vinegar contained a small amount of citric acid (a triprotic acid). Using the same experiment...
1. Assume that your vinegar contained a small amount of citric acid (a triprotic acid). Using the same experimental data, would vou expect the molarity of this sample to be POST-LAB QUESTIONS the same as or different than a sample which contained only pure acetic acid? 2 Assume that the tip of your buret was not properly filled with NaOH solution. It contained an air bubble which was eliminated during the titration. Would the caleulated molarity of the vinegar be...
1)-Briefly explain the role of the hydrochloric acid during the liquid-liquid extraction procedure. Draw the acid-base...
1)-Briefly explain the role of the hydrochloric acid during the liquid-liquid extraction procedure. Draw the acid-base reaction between lidocaine freebase and hydronium chloride to help your discussion and circle the organic species that is more soluble in water. 2)- Briefly explain the role of the potassium hydroxide during the liquid-liquid extraction procedure. Draw the acid-base reaction between lidocaine hydrochloride and potassium hydroxide to help your discussion and circle the organic species that is would be more soluble in the organic...
Laboratory Questions Circle the questions that have been assigned. 1. Part A.1. The KIO, sample was...
Laboratory Questions Circle the questions that have been assigned. 1. Part A.1. The KIO, sample was not sur klo, sample was not sufficiently dried. Will the reported molar concentration of the KIO, solution (Part B.3) be too high, too low, or unaffected? Explain. 2. Part A.1. The mass of KIO, used to prepare he mass of KIO, used to renare the solution was measured to be 0.585 g instead of the calculated 0.535 a. Will the molar concentration of th...
1. Consider the complex ion [Pt(NH3)4Cl2]*?. Note: Include charges for any ions. a. Identify the Lewis...
1. Consider the complex ion [Pt(NH3)4Cl2]*?. Note: Include charges for any ions. a. Identify the Lewis acid(s). b. Identify the Lewis base(s). c. What is the coordination number? 2. Consider the analysis of the copper content in this experiment. If the cuvets used in the spectrophotometer were rinsed with distilled water, but not dried or conditioned (lined) before use, would the calculated number of moles of copper per gram of complex be too high, too low, or unaffected? Briefly explain....
• Material from the Acid-Base Titration Experiment. If you were to overtitrate without realizing it, would...
• Material from the Acid-Base Titration Experiment. If you were to overtitrate without realizing it, would the following results come out too high, too low or unchanged? Be able to explain your answer. concentration of acetic acid in vinegar • mass percent of acetic acid in vinegar? o What is the purpose of adding deionized water to the vinegar in the Erlenmeyer flask? Does it affect the endpoint? Explain why or why not.
3. There is an air bubble in the tip of your buret, but you start the titration anyway. Some time during the course of the titration, the air bubble is dislodged and leaves the buret. Your final titration volume will be a) fine, the air bubble was not an issue b) too great, but the calculation should be ok c) too small, this titration is ruined d) too great, this titration is ruined
2. A 0.500-gram sample of a weak, nonvolatile monoprotic acid, HA, was dissolved in sufficient water to make 50.0 milliliters of solution. The solution was then titrated with a standard NaOH solution. Predict how the calculated molar mass of HA would be affected (too high, too low, or not affected) by the following laboratory procedures. Explain each of your answers. A. (2 points.). After rinsing the buret with distilled water, the buret is filled with the standard NaOH solution; the...
3. Consider the analysis of the ammonia content in this experiment. If the buret used in the titration was rinsed with distilled water, but not dried or conditioned before use, would the calculated number of moles of ammonia per gram of complex be too high, too low, or unaffected? Briefly Explain. If the titration flask was rinsed with distilled water but not dried before use, would the calculated number of moles of ammonia per gram of complex be too high,...
Suppose some of the solid calcium hydroxide is inadvertently transferred along with the supernatant liquid for analysis. a.Will more. less, or the same amount of hydrochloric acid titrant be used for the analysis in .6? Explain. b.Will this inadvertent transfer increase, decrease, or have no effect on the calculated solubility product for calcium hydroxide? Explain. c.Will this inadvertent transfer increase, decrease, or have no effect on the calculated molar solubility of calcium hydroxide? Explain. 2. .6 Does adding beiled, deionized...
1. Assume that your vinegar contained a small amount of citric acid (a triprotic acid). Using the same experimental data, would vou expect the molarity of this sample to be POST-LAB QUESTIONS the same as or different than a sample which contained only pure acetic acid? 2 Assume that the tip of your buret was not properly filled with NaOH solution. It contained an air bubble which was eliminated during the titration. Would the caleulated molarity of the vinegar be...
Laboratory Questions Circle the questions that have been assigned. 1. Part A.1. The KIO, sample was not sur klo, sample was not sufficiently dried. Will the reported molar concentration of the KIO, solution (Part B.3) be too high, too low, or unaffected? Explain. 2. Part A.1. The mass of KIO, used to prepare he mass of KIO, used to renare the solution was measured to be 0.585 g instead of the calculated 0.535 a. Will the molar concentration of th...
1. Consider the complex ion [Pt(NH3)4Cl2]*?. Note: Include charges for any ions. a. Identify the Lewis acid(s). b. Identify the Lewis base(s). c. What is the coordination number? 2. Consider the analysis of the copper content in this experiment. If the cuvets used in the spectrophotometer were rinsed with distilled water, but not dried or conditioned (lined) before use, would the calculated number of moles of copper per gram of complex be too high, too low, or unaffected? Briefly explain....
• Material from the Acid-Base Titration Experiment. If you were to overtitrate without realizing it, would the following results come out too high, too low or unchanged? Be able to explain your answer. concentration of acetic acid in vinegar • mass percent of acetic acid in vinegar? o What is the purpose of adding deionized water to the vinegar in the Erlenmeyer flask? Does it affect the endpoint? Explain why or why not.
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