Homework Answers
from the given data,
Percentage of NaClO in undiluted bleach = 
= 5.431%
answer: 5.431%
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when i divide #3 and #4 and then multiply by 100 i get 5.43093385214 and i have to use the correct sig figs. what a...
for question #5, i divided #3 and #4 and then multiplied by 100. the answer the...
for question #5, i divided #3 and #4 and then multiplied by
100. the answer the last expert gave me with the correct sig figs
was 5.431 and it was incorrect. ive tried different variations of
the answer and i am still getting it wrong. please help
Suppose a student diluted and titrated a bleach unknown exactly as described in the experimental procedure except only a single titration was performed which required 15.04 mL of 0.100 M Na S203. The...
ive tried getting help for these problems numerous times and havent had any luck. Suppose a...
ive tried getting help for these problems numerous times and
havent had any luck.
Suppose a student diluted and titrated a bleach unknown exactly as described in the experimental procedure, except only a single titration was performed which required 15.04 mL of 0.100 M Na S 02. The density of the original, undiluted bleach unknown was 1.028 g/mL 1. Calculate the number of moles of Na2S2O3 used in the titration 0.00150 mol 2. Calculate the number of moles of CIO...
Your ticket will appear here once you na ve correctly ans w ered an or ше реао quesuon. Prelab for Experiment 6-...
Your ticket will appear here once you na ve correctly ans w ered an or ше реао quesuon. Prelab for Experiment 6- Titration of an Unknown Acid In this prelab, answers to questions l and 2 should be reported toateastisennoantngurs Scientific notation format 2.34E 4. The 'E' must be capitalized." The prelab questions mirror those that you will be doing at the end of the experiment. Bring your work for this prelab assignment to lab and you will have a...
Not sure if I did number 4 correct. The half way point was 7.89mL with a...
Not sure if I did number 4 correct.
The
half way point was 7.89mL with a pH of 3.42
4) Determine the pK, and calculate the K, of the unknown acid. Mass of Unknown 2.40 g Sample Value Unit Initial burette volume of NaOH 2.00 ml Final burette volume of NaOH 18.00ml Fast Titration #2: I Sample Value Unit Initial burette volume of NaOH 18.00 mL Final burette volume of NaOH 33.8 ml Slow Titration: Volume of NaOH/mL pH volume...
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....
Can I get help with 3 please, but may you please check my responses for 1...
Can I get help with 3 please, but may you please check my responses
for 1 & 2.
Problems 1. Oxalic acid dihydrate, HyC204 2H20, is often used as a primary standard for the standardization of base solutions. For a procedure comparable to this experiment, approximately how many grams of oxalic acid dihydrate should be used in order to have a volume of about 15 ml of NaOH solution (approximately 0.15M) for the titration? The acid is diprotic (two H...
I need help with questions 4 to 7. I have solved 1 to 3 as reference....
I need help with questions 4 to 7. I have solved 1 to 3 as
reference. Thank you.
10:COMPARISON OF BUFFERED AND UNBUFFERED SYSTEMS To Sindents: This labit hranih alat date wahisand calculations of buffers and pH, there is no date. Your instructor will assign a specific buffer for or instructor will assign a specific buffer for you to make in the lab. "You will then be asked to perform serveral calculations based on your migue buffer assignment. way bandurite...
lab report titration help please! additional images on lab report 3. Federal standards require that any...
lab report titration help please!
additional images on lab report
3. Federal standards require that any commercial material called "vinegar" must contain as cast acetic acid. According to your results in question 4, does the vinegar sample you titrated meet the Federal standards? Explain why or why not. PART B: IDENTIFICATION OF AN UNKNOWN ACID DATA Molarity of NaOH used Mass of unknown acid used 0.050M 0.5989 14.43mc Average volume of NaOH used in the titration CALCULATIONS 1. Using the...
help on number 3 here is lab we did EXPERIMENT 19 An Analysis of Commercial Antacids...
help on number 3 here is lab we did
EXPERIMENT 19 An Analysis of Commercial Antacids Rolaids Alka Seltzer OBJECTIVES: Determine the per gram neutralizing ability of a commercial antacio Determine the per gram neutralizing ability of sodium bicarbonate Compare the effectiveness of several antacids. INTRODUCTION: "How do you spell relief two hecimie The parietal cells in the stomach secrete sufficient hydrochloric aci 0.10 M The flow of HCl increases when food enters the stomach and so acid secrete sufficient...
for question #5, i divided #3 and #4 and then multiplied by
100. the answer the last expert gave me with the correct sig figs
was 5.431 and it was incorrect. ive tried different variations of
the answer and i am still getting it wrong. please help
Suppose a student diluted and titrated a bleach unknown exactly as described in the experimental procedure except only a single titration was performed which required 15.04 mL of 0.100 M Na S203. The...
ive tried getting help for these problems numerous times and
havent had any luck.
Suppose a student diluted and titrated a bleach unknown exactly as described in the experimental procedure, except only a single titration was performed which required 15.04 mL of 0.100 M Na S 02. The density of the original, undiluted bleach unknown was 1.028 g/mL 1. Calculate the number of moles of Na2S2O3 used in the titration 0.00150 mol 2. Calculate the number of moles of CIO...
Your ticket will appear here once you na ve correctly ans w ered an or ше реао quesuon. Prelab for Experiment 6- Titration of an Unknown Acid In this prelab, answers to questions l and 2 should be reported toateastisennoantngurs Scientific notation format 2.34E 4. The 'E' must be capitalized." The prelab questions mirror those that you will be doing at the end of the experiment. Bring your work for this prelab assignment to lab and you will have a...
Not sure if I did number 4 correct.
The
half way point was 7.89mL with a pH of 3.42
4) Determine the pK, and calculate the K, of the unknown acid. Mass of Unknown 2.40 g Sample Value Unit Initial burette volume of NaOH 2.00 ml Final burette volume of NaOH 18.00ml Fast Titration #2: I Sample Value Unit Initial burette volume of NaOH 18.00 mL Final burette volume of NaOH 33.8 ml Slow Titration: Volume of NaOH/mL pH volume...
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....
Can I get help with 3 please, but may you please check my responses
for 1 & 2.
Problems 1. Oxalic acid dihydrate, HyC204 2H20, is often used as a primary standard for the standardization of base solutions. For a procedure comparable to this experiment, approximately how many grams of oxalic acid dihydrate should be used in order to have a volume of about 15 ml of NaOH solution (approximately 0.15M) for the titration? The acid is diprotic (two H...
I need help with questions 4 to 7. I have solved 1 to 3 as
reference. Thank you.
10:COMPARISON OF BUFFERED AND UNBUFFERED SYSTEMS To Sindents: This labit hranih alat date wahisand calculations of buffers and pH, there is no date. Your instructor will assign a specific buffer for or instructor will assign a specific buffer for you to make in the lab. "You will then be asked to perform serveral calculations based on your migue buffer assignment. way bandurite...
lab report titration help please!
additional images on lab report
3. Federal standards require that any commercial material called "vinegar" must contain as cast acetic acid. According to your results in question 4, does the vinegar sample you titrated meet the Federal standards? Explain why or why not. PART B: IDENTIFICATION OF AN UNKNOWN ACID DATA Molarity of NaOH used Mass of unknown acid used 0.050M 0.5989 14.43mc Average volume of NaOH used in the titration CALCULATIONS 1. Using the...
help on number 3 here is lab we did
EXPERIMENT 19 An Analysis of Commercial Antacids Rolaids Alka Seltzer OBJECTIVES: Determine the per gram neutralizing ability of a commercial antacio Determine the per gram neutralizing ability of sodium bicarbonate Compare the effectiveness of several antacids. INTRODUCTION: "How do you spell relief two hecimie The parietal cells in the stomach secrete sufficient hydrochloric aci 0.10 M The flow of HCl increases when food enters the stomach and so acid secrete sufficient...
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