In the lab of determining the peroxide w/v with KMnO4- What would be the effect on your results if: 1) Due to some error...
In the lab of determining the peroxide w/v with KMnO4- What would be the effect on your results if:
1) Due to some error that occurred during KMnO4 standardization, the KMnO4 concentration you used for your calculations was higher than that actually used in the titration?
2)The amount of water that was used to dilute your titration mixtures was always about 20% higher than the recommended 100mL in the procedure?
3) You transferred 10% too much peroxide unknown to the titration flask before each titration?
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In the lab of determining the peroxide w/v with KMnO4- What would be the effect on your results if: 1) Due to some error...
POST-LAB QUESTIONS Explain the effect on your calculated acid concentration if the following errors occurred 1....
POST-LAB QUESTIONS Explain the effect on your calculated acid concentration if the following errors occurred 1. A student left his or her buret funnel in the buret during the titration. 2. A student started their titration with air bubbles in the buret tip. 3. The dilute HCl was over-diluted in the volumetric flask. 4. The flask that the student added the dilute acid to before the titration was wet. Titration of an unknown Acid
1. If the bubble in the tip of the buret is not removed prior to performing...
1. If the bubble in the tip of the buret is not removed prior to performing the HCl titration, will the reported concentration of the HCl be greater than, less than, or equal to the true concentration of the HCl if the bubble is pushed from the buret during the titration? Explain your answer. 2. Explain why it is not always necessary to refill the buret after every titration. 3. Explain why it is not necessary to dry the Erlenmeyer...
please answer all the parts Supplemental Questions - Titration Lab, 1. Indicate how each of the...
please answer all the parts
Supplemental Questions - Titration Lab, 1. Indicate how each of the following would affect the values of K, for the weak acid unknown and for the dibasic salt and the value of the molar mass for the dibasic salt (Would the determined values be higher or lower than the actual values?). Use larger, smaller or no change. And as always....Explain. a. The titrant (either the NaOH or the HCI) molarity is actually HIGHER than that...
LABORATORY 8 Post-Lab 1. Explain how each of the following errors would have altered your results....
LABORATORY 8 Post-Lab 1. Explain how each of the following errors would have altered your results. Clearly explain why your calculated answer would be high, low, or unchanged. (A single word answer is not acceptable.) a. You decided to take the pH after each addition of 5.0 mL of NaOH rather than after every 0.5 mL during the neutralization of your acid sample. b. While using the Half Volume method, your solution was dark pink (you overshot the endpoint) and...
Data the experiment Record For the lab report, attach this data sheet (signed by your TA) to your...
please write out calculations for each box missing an answer
data the experiment Record For the lab report, attach this data sheet (signed by your TA) to your calculations page. REPORT ALL VALUES TO AT LEAST THREE SIGNIFICANT FIGURES. READ YOUR BURETTE TO THE NEAREST 0.05 mL increment. for on this sheet. Do your calculations on a separate piece of paper. Part One-Standardization of a NaOH solution of approximately 0.1 M. Trial 1 | Trial 2 | Trial 3 Mass...
please I need help with this one question. Titration Procedure Prepare your starch solution by dissolving...
please I need help with this one question. Titration Procedure Prepare your starch solution by dissolving 0.040g of vitex starch in 20 mL of water. Prepare your 3%diluted commercial bleach solution (3% of the concentration of the commercial bleach, by volume.) Do not discard as you will use this solution for each of your trials. Dependingonyourinstructor’schosenmethod;deliverexactly3mLofcommercialbleach solution to a 100mL volumetric flask using the burette that contains the class’s supply of bleach, or pour some from the bottle into a...
please help with my pre lab additional information Pre-Lab Questions: 1. What is the definition of...
please help with my pre lab
additional information
Pre-Lab Questions: 1. What is the definition of an 'equivalence point' in an acid/base titration? (1 point) 2. In part one of the experiment, you will prepare the acid solutions being titrated from a stock solution. Describe how you will accurately prepare 10.00 mL of 0.100 M HCl solution using a 1.00 M HCI stock solution. In your response to this question, be very specific about the quantities of stock solution and...
Vitamin C Project Lab: Part B: Data analysis Calculate the grams of Vitamin C in your...
Vitamin C Project Lab: Part B: Data analysis Calculate the grams of Vitamin C in your Erlenmeyer. (as in titration #1 ) Calculate the grams of Vitamin C per tablet. Calculate a percent error by comparing your result to the tablet dose above. Determine the % composition of vitamin C in the tablet Build a data table similar to the one you used for titration # 1 to calculate the following: 1. 2 3. 4. Show all your work Trial...
just need help with questions 3. a & b always rate!!! Introduction Titration is a common...
just need help with questions 3. a & b
always rate!!!
Introduction Titration is a common analytical technique that is used to verify the concentrations of chemicals before they are sold as commercial products, in a process known as quality control. In this lab, you will be using a redox titration to find the concentration of the strong oxidizing agent hypochlorite (CIO) which is the active ingredient in bleach. Oxidizing and reducing agents are often determined using a redox titration....
..ll GoSmart 9:18 PM 7 73% Х CHM 103 Lab 3 Acid Base... + U Experiment...
..ll GoSmart 9:18 PM 7 73% Х CHM 103 Lab 3 Acid Base... + U Experiment 3 ACIDS AND BASES: ANALYSIS Learning Objectives Upon completion of this experiment, Mudents will have experienced 1. The determination of the percent by mass of acetic acid in vinegar 2. The determination of the molecular mass of an unknown acid Text Toples Acids and buses, indicators, titrations Notes to Students and Instructor The solution of sodium hydroxide prepared last week will be used to...
POST-LAB QUESTIONS Explain the effect on your calculated acid concentration if the following errors occurred 1. A student left his or her buret funnel in the buret during the titration. 2. A student started their titration with air bubbles in the buret tip. 3. The dilute HCl was over-diluted in the volumetric flask. 4. The flask that the student added the dilute acid to before the titration was wet. Titration of an unknown Acid
1. If the bubble in the tip of the buret is not removed prior to performing the HCl titration, will the reported concentration of the HCl be greater than, less than, or equal to the true concentration of the HCl if the bubble is pushed from the buret during the titration? Explain your answer. 2. Explain why it is not always necessary to refill the buret after every titration. 3. Explain why it is not necessary to dry the Erlenmeyer...
please answer all the parts
Supplemental Questions - Titration Lab, 1. Indicate how each of the following would affect the values of K, for the weak acid unknown and for the dibasic salt and the value of the molar mass for the dibasic salt (Would the determined values be higher or lower than the actual values?). Use larger, smaller or no change. And as always....Explain. a. The titrant (either the NaOH or the HCI) molarity is actually HIGHER than that...
LABORATORY 8 Post-Lab 1. Explain how each of the following errors would have altered your results. Clearly explain why your calculated answer would be high, low, or unchanged. (A single word answer is not acceptable.) a. You decided to take the pH after each addition of 5.0 mL of NaOH rather than after every 0.5 mL during the neutralization of your acid sample. b. While using the Half Volume method, your solution was dark pink (you overshot the endpoint) and...
please write out calculations for each box missing an answer
data the experiment Record For the lab report, attach this data sheet (signed by your TA) to your calculations page. REPORT ALL VALUES TO AT LEAST THREE SIGNIFICANT FIGURES. READ YOUR BURETTE TO THE NEAREST 0.05 mL increment. for on this sheet. Do your calculations on a separate piece of paper. Part One-Standardization of a NaOH solution of approximately 0.1 M. Trial 1 | Trial 2 | Trial 3 Mass...
please help with my pre lab
additional information
Pre-Lab Questions: 1. What is the definition of an 'equivalence point' in an acid/base titration? (1 point) 2. In part one of the experiment, you will prepare the acid solutions being titrated from a stock solution. Describe how you will accurately prepare 10.00 mL of 0.100 M HCl solution using a 1.00 M HCI stock solution. In your response to this question, be very specific about the quantities of stock solution and...
Vitamin C Project Lab: Part B: Data analysis Calculate the grams of Vitamin C in your Erlenmeyer. (as in titration #1 ) Calculate the grams of Vitamin C per tablet. Calculate a percent error by comparing your result to the tablet dose above. Determine the % composition of vitamin C in the tablet Build a data table similar to the one you used for titration # 1 to calculate the following: 1. 2 3. 4. Show all your work Trial...
just need help with questions 3. a & b
always rate!!!
Introduction Titration is a common analytical technique that is used to verify the concentrations of chemicals before they are sold as commercial products, in a process known as quality control. In this lab, you will be using a redox titration to find the concentration of the strong oxidizing agent hypochlorite (CIO) which is the active ingredient in bleach. Oxidizing and reducing agents are often determined using a redox titration....
..ll GoSmart 9:18 PM 7 73% Х CHM 103 Lab 3 Acid Base... + U Experiment 3 ACIDS AND BASES: ANALYSIS Learning Objectives Upon completion of this experiment, Mudents will have experienced 1. The determination of the percent by mass of acetic acid in vinegar 2. The determination of the molecular mass of an unknown acid Text Toples Acids and buses, indicators, titrations Notes to Students and Instructor The solution of sodium hydroxide prepared last week will be used to...
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