Homework Answers
When filling a burette for a titration, adjust the burette so that the opening is near or below the eye level preferably over a sink. Then use a funnel to add the titrant into the burette. The titrant should be filled almost to the zero mark.
Answers are:
---> the opening is near or below the eye level
---> use a funnel
---> almost to the zero mark.
Add Answer to:
When filling a burette for a titration, adjust the burette so that Choose preferably over a...
Please help with my Titration lab! I am having difficulty understanding this. Thank you! C. Analyzing...
Please help with my Titration lab! I am having difficulty
understanding this. Thank you!
C. Analyzing an unknown base - optimizing a method: In this segment you will design your own method for analyzing an unknown base. In the solutions list there are several different concentrations of HCl to choose from. You can also try different sample volumes of the unknown base. Be sure to record these for each trial. Your goal is to find two different combinations of HCI...
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....
i am lost woth Titration, please help... i was able tondo my virtual lab and get...
i
am lost woth Titration, please help... i was able tondo my virtual
lab and get the data needed... but i dont understand what to do on
the remaining problems! please help!
Experiment 11 part 2 ACID BASE TITRATIONS OBJECTIVES 1. To learn general titration techniques 2. To generate a standardized titrant. 3. To determine the concentration of various acid samples. PROCEDURES - WORK ALONE INTRODUCTION In part 1 you practiced standardizing a titrant: using KHP is a common procedure...
Hello. I was trying to do the question but i think my direction is wrong. Can you help me to solve it please. a) T...
Hello. I was trying to do the question but i think my direction is
wrong. Can you help me to solve it please.
a) Titration of Borax Pipette accurately 10.0 cm of the mixed solution into a 200 or 250 cm conical flask and then add a few drops of methyl red (colour change for this indicator is from red in acid to yellow in basic solution) or screened methyl red indicator. Place this flask on a white, glazed plate...
Referring to figure 10.4 choose an appropriate indicator for each titration. Justify your answer The last...
Referring to figure 10.4 choose an appropriate indicator for each
titration. Justify your answer
The last page shows data from titration
whether phenolphthalein is a good 7 Referring to Figure 10.4, choose an appropr to Figure 10.4, choose an appropriate indicator for each titration. Justify your answer. 0.1UM Acidic indicator pH range Basic Thymol Blue 11 12 13 12-28 and 8.0-92 14 Methyl Orange Bromophenol Blue 10-4. Congo Red 30-50 Bromocresol Green 3.8-5.4 Methyl Red 44-62 Bromothymol Blue 6.0-7.6 Phenol...
1. Using EDTA as the titrant and a free metal in solution is called a direct titration. This can be measured using...
1. Using EDTA as the titrant and a free metal in solution is called a direct titration. This can be measured using an indicator that changes color when the metal is no longer in solution. What the other types of EDTA titrations that can be done and why would you choose to do one of are those? 2. What is the formation constant for calcium with EDTA? Are there any challenges with doing a direct titration with Ca2? If so...
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...
I’m so confused on how to do any of this. Name Date General Chemistry I Lab CHE 1211 Data: Concentration of NaOH Trial Titration (to be used as practice) Initial burete eading4.0 ml Final burette...
I’m so confused on how to do any of this.
Name Date General Chemistry I Lab CHE 1211 Data: Concentration of NaOH Trial Titration (to be used as practice) Initial burete eading4.0 ml Final burette reading 20.h m 22.om. Volume of NaOH used Repeat until 2 successful titrations are achieved. Titrations (to be used in calculations) K.Oml 0.bml 35.o mL 22.3 mL 38.5ml ↓ 30.6 mL45.0 mL 49.0 mL 35.5mL50.0 me 22.0mL H. m0 ml 1b.20 m 4.5ml Initial burette...
True or False: During a titration the solution of UNKNOWN concentration should be placed in the...
True or False: During a titration the solution of UNKNOWN concentration should be placed in the burette, and added to the solution of KNOWN concentration (in the E.flask) True or False: When titrating, the acidic solution always goes in the burette, and the basic solution in the E.flask) In order to find the concentration of a chromic acid solution, a student measured out 50.0 mL in a graduated cylinder, then poured this volume into a beaker. The student then added...
Help, how to graphically find the equivalence point volume for the titration of NH3 + HCl...
Help, how to graphically find the equivalence point volume for
the titration of NH3 + HCl
NH3 actual concentration is 0.098M
Part B: Titration of a weak base with a strong acid Pipette 25.00 mL of 0.1 M (record the exact molarity) ammonia into a clean 400 ml beaker after first placing a magnetic stirring bar on the bottom of the beaker. Add ~150 mL of deionized water and 2 drops of the indicator methyl red. Place the beaker on...
Please help with my Titration lab! I am having difficulty
understanding this. Thank you!
C. Analyzing an unknown base - optimizing a method: In this segment you will design your own method for analyzing an unknown base. In the solutions list there are several different concentrations of HCl to choose from. You can also try different sample volumes of the unknown base. Be sure to record these for each trial. Your goal is to find two different combinations of HCI...
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....
i
am lost woth Titration, please help... i was able tondo my virtual
lab and get the data needed... but i dont understand what to do on
the remaining problems! please help!
Experiment 11 part 2 ACID BASE TITRATIONS OBJECTIVES 1. To learn general titration techniques 2. To generate a standardized titrant. 3. To determine the concentration of various acid samples. PROCEDURES - WORK ALONE INTRODUCTION In part 1 you practiced standardizing a titrant: using KHP is a common procedure...
Hello. I was trying to do the question but i think my direction is
wrong. Can you help me to solve it please.
a) Titration of Borax Pipette accurately 10.0 cm of the mixed solution into a 200 or 250 cm conical flask and then add a few drops of methyl red (colour change for this indicator is from red in acid to yellow in basic solution) or screened methyl red indicator. Place this flask on a white, glazed plate...
Referring to figure 10.4 choose an appropriate indicator for each
titration. Justify your answer
The last page shows data from titration
whether phenolphthalein is a good 7 Referring to Figure 10.4, choose an appropr to Figure 10.4, choose an appropriate indicator for each titration. Justify your answer. 0.1UM Acidic indicator pH range Basic Thymol Blue 11 12 13 12-28 and 8.0-92 14 Methyl Orange Bromophenol Blue 10-4. Congo Red 30-50 Bromocresol Green 3.8-5.4 Methyl Red 44-62 Bromothymol Blue 6.0-7.6 Phenol...
1. Using EDTA as the titrant and a free metal in solution is called a direct titration. This can be measured using an indicator that changes color when the metal is no longer in solution. What the other types of EDTA titrations that can be done and why would you choose to do one of are those? 2. What is the formation constant for calcium with EDTA? Are there any challenges with doing a direct titration with Ca2? If so...
I’m so confused on how to do any of this.
Name Date General Chemistry I Lab CHE 1211 Data: Concentration of NaOH Trial Titration (to be used as practice) Initial burete eading4.0 ml Final burette reading 20.h m 22.om. Volume of NaOH used Repeat until 2 successful titrations are achieved. Titrations (to be used in calculations) K.Oml 0.bml 35.o mL 22.3 mL 38.5ml ↓ 30.6 mL45.0 mL 49.0 mL 35.5mL50.0 me 22.0mL H. m0 ml 1b.20 m 4.5ml Initial burette...
True or False: During a titration the solution of UNKNOWN concentration should be placed in the burette, and added to the solution of KNOWN concentration (in the E.flask) True or False: When titrating, the acidic solution always goes in the burette, and the basic solution in the E.flask) In order to find the concentration of a chromic acid solution, a student measured out 50.0 mL in a graduated cylinder, then poured this volume into a beaker. The student then added...
Help, how to graphically find the equivalence point volume for
the titration of NH3 + HCl
NH3 actual concentration is 0.098M
Part B: Titration of a weak base with a strong acid Pipette 25.00 mL of 0.1 M (record the exact molarity) ammonia into a clean 400 ml beaker after first placing a magnetic stirring bar on the bottom of the beaker. Add ~150 mL of deionized water and 2 drops of the indicator methyl red. Place the beaker on...
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