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Date Soap Name Partner Answer the following questions. • From the pH test, what is one...
Acids, Bases, and Buffers CHEM& 121 Lab Partner Data Part A Red pH Red Cabbage Test Tube Blue Lit...
Acid, bases and buffers
Acids, Bases, and Buffers CHEM& 121 Lab Partner Data Part A Red pH Red Cabbage Test Tube Blue Litmus (color) Solution Juice (color)values (colbr) no reaction 2.890 Magenta 11.37dark green Red blue no reaction 2.700 Magenta lemon juice soft drink drain cleaner no reaction detergent baking soda no reaction red red no raction 3.530 Purple blue 12.56 no reactionno reaction 8.700 dark green 9.350 teal/green Part B Total Number of rops of HCl(aq) Added DI Water...
please answer number 5 5. The AgNO3 test solution was not used to test the water...
please
answer number 5
5. The AgNO3 test solution was not used to test the water insoluble but acid soluble unknowns, only the NaOH and Na2CO3 were used. Propose a reason why the AgNO3 was not used in part 3 of the experiment. Discussion/Conclusion (continue on the back of this page if needed) UTA-705 out each test tube at the sink with soap and water using a tes water and then analytical grade water (twice) and reuse the tu water...
REPORT SHEET Date Esters Name Partner Answer all of the following: 1. Name any three of...
REPORT SHEET Date Esters Name Partner Answer all of the following: 1. Name any three of the esters formed in this experiment: Carboxylic Acid Alcohol Name of Ester 2. Why are artificial flavors and/or odors not quite the "real thing?" 3. Although we did not make it, methyl butanoate has the scent of apples. Identify the two substances you would use to synthesize this compound. 4. In the saponification reaction, when HCl was added in procedure #6, a solid should...
I need helppp with my AP chem lab
Purpose: To calculate the amount of AgNO3 present in an unknown solution of water through the process of gravimetric analysis with NaCl. Background: Have you ever had difficulty lathering soap or find that the scum in your shower constantly needs to be removed? These are signs of “hard water.” Soap does not lather well in hard water because metal ions, such as Ca2+, form precipitates, creating “soap scum.” A precipitate is an insoluble compound that forms when soluble ions in...
What would be my percent yield if i retrieved 3.1020 grams of soap? thank you, please show all work.
what would be my percent yield if i retrieved 3.1020 grams of
soap? thank you, please show all work.
SAPONIFICATION (HYDROLYSIS OF A FAD Fats and edible oils consitute a special class of esters called riglycerides in which alcohol part of the molecule, the trihydroxy compound glycerol, forms with three molecules of various long-chain carboxylic acids (called fatty acids). Ty reactions of simple esters can also be carried out on fats and oils,i acid-or-base-catalyzed hydrolysis. three ester linkages carboxylic acids...
look over the expeirment instructions in photos 1-3 then answer questions 1-4 in the last photo...
look over the expeirment instructions in photos 1-3 then
answer questions 1-4 in the last photo
Exercise 1 Extraction of DNA In this exercise, you will extract and observe DNA from split peas. Note: The night before beginning the experiment, place the 91% isopropyl alcohol into a freezer to chill. The entire bottle may be placed in the freezer without harming the bottle or its contents. If a freezer is not available, place alcohol bottle in an ice-bath at least...
I don't understand what calculations I would have made to create the buffer solution from Part...
I don't understand what calculations I would have made to create
the buffer solution from Part D of the lab. I understood the
procedures I took to create the solution but when the report asks
to show the calculations used to prepare the buffer solution I am
not sure other than mixing the volumes indicated in the procedures
section.
Thank you
pH of Butter Assigned by Instructor 5.12. Measured pH of Assigned B r .9 (Read the procedural Show the...
can someone please answer number one? im so lost DYES AND DYEING CHAPTER 1. Calculate the...
can someone please answer number one? im so lost
DYES AND DYEING CHAPTER 1. Calculate the amounts of salicylic acid, 1-naphthol, 2-naphthol, 8-anilino-1-naph- thalenesulfonic acid ammonium salt, or N,N-dimethylaniline needed for Part 1B of this experiment (use molecules as assigned by your TA). 190mg 3-aminobenzene 2.5mL Sulfonic acid 2.5% sodium carbonate solution 81mg Sodium nitrate 2. What is the purpose of the sodium carbonate in Part 1A? Why do we add glacial acetic acid in Part 13 when we react...
i am needing help with question 4 and 5. anything else helps Name Experiment 7 Calorimetry Postlab: Questions 25 points possible Section (day&time) Instructor Due date Answer the following qu...
i am needing help with question 4 and 5. anything else
helps
Name Experiment 7 Calorimetry Postlab: Questions 25 points possible Section (day&time) Instructor Due date Answer the following questions using complete sentences and support your answers with swers calculations, if desired. Attach additional pages as necessary. Handwritten or typed an are acceptable.(5 pts per question) 1. If som e of your hot metal remained in the test tube when it was transferred to the eter, would its calculated molar...
Name Section/CRN EXPERIMENT 9 POTENTIOMETRIC DETERMINATION OF AN EQUILIBRIUM CONSTANT PRE-LABORATORY QUESTIONS The following preparatory questions...
Name Section/CRN EXPERIMENT 9 POTENTIOMETRIC DETERMINATION OF AN EQUILIBRIUM CONSTANT PRE-LABORATORY QUESTIONS The following preparatory questions should be answered before coming to lab. They are intended to introduce you to several jdeas that are important to aspects of the experiment. You must turn in your work to your instructor before you will be allowed to begin the experiment. Potassium acid phthalate, KHP (KHC4H&O4), is a primary standard reagent used to determine exactly the concentration of a solution of base, such...
Acid, bases and buffers
Acids, Bases, and Buffers CHEM& 121 Lab Partner Data Part A Red pH Red Cabbage Test Tube Blue Litmus (color) Solution Juice (color)values (colbr) no reaction 2.890 Magenta 11.37dark green Red blue no reaction 2.700 Magenta lemon juice soft drink drain cleaner no reaction detergent baking soda no reaction red red no raction 3.530 Purple blue 12.56 no reactionno reaction 8.700 dark green 9.350 teal/green Part B Total Number of rops of HCl(aq) Added DI Water...
please
answer number 5
5. The AgNO3 test solution was not used to test the water insoluble but acid soluble unknowns, only the NaOH and Na2CO3 were used. Propose a reason why the AgNO3 was not used in part 3 of the experiment. Discussion/Conclusion (continue on the back of this page if needed) UTA-705 out each test tube at the sink with soap and water using a tes water and then analytical grade water (twice) and reuse the tu water...
REPORT SHEET Date Esters Name Partner Answer all of the following: 1. Name any three of the esters formed in this experiment: Carboxylic Acid Alcohol Name of Ester 2. Why are artificial flavors and/or odors not quite the "real thing?" 3. Although we did not make it, methyl butanoate has the scent of apples. Identify the two substances you would use to synthesize this compound. 4. In the saponification reaction, when HCl was added in procedure #6, a solid should...
what would be my percent yield if i retrieved 3.1020 grams of
soap? thank you, please show all work.
SAPONIFICATION (HYDROLYSIS OF A FAD Fats and edible oils consitute a special class of esters called riglycerides in which alcohol part of the molecule, the trihydroxy compound glycerol, forms with three molecules of various long-chain carboxylic acids (called fatty acids). Ty reactions of simple esters can also be carried out on fats and oils,i acid-or-base-catalyzed hydrolysis. three ester linkages carboxylic acids...
look over the expeirment instructions in photos 1-3 then
answer questions 1-4 in the last photo
Exercise 1 Extraction of DNA In this exercise, you will extract and observe DNA from split peas. Note: The night before beginning the experiment, place the 91% isopropyl alcohol into a freezer to chill. The entire bottle may be placed in the freezer without harming the bottle or its contents. If a freezer is not available, place alcohol bottle in an ice-bath at least...
I don't understand what calculations I would have made to create
the buffer solution from Part D of the lab. I understood the
procedures I took to create the solution but when the report asks
to show the calculations used to prepare the buffer solution I am
not sure other than mixing the volumes indicated in the procedures
section.
Thank you
pH of Butter Assigned by Instructor 5.12. Measured pH of Assigned B r .9 (Read the procedural Show the...
can someone please answer number one? im so lost
DYES AND DYEING CHAPTER 1. Calculate the amounts of salicylic acid, 1-naphthol, 2-naphthol, 8-anilino-1-naph- thalenesulfonic acid ammonium salt, or N,N-dimethylaniline needed for Part 1B of this experiment (use molecules as assigned by your TA). 190mg 3-aminobenzene 2.5mL Sulfonic acid 2.5% sodium carbonate solution 81mg Sodium nitrate 2. What is the purpose of the sodium carbonate in Part 1A? Why do we add glacial acetic acid in Part 13 when we react...
i am needing help with question 4 and 5. anything else
helps
Name Experiment 7 Calorimetry Postlab: Questions 25 points possible Section (day&time) Instructor Due date Answer the following questions using complete sentences and support your answers with swers calculations, if desired. Attach additional pages as necessary. Handwritten or typed an are acceptable.(5 pts per question) 1. If som e of your hot metal remained in the test tube when it was transferred to the eter, would its calculated molar...
Name Section/CRN EXPERIMENT 9 POTENTIOMETRIC DETERMINATION OF AN EQUILIBRIUM CONSTANT PRE-LABORATORY QUESTIONS The following preparatory questions should be answered before coming to lab. They are intended to introduce you to several jdeas that are important to aspects of the experiment. You must turn in your work to your instructor before you will be allowed to begin the experiment. Potassium acid phthalate, KHP (KHC4H&O4), is a primary standard reagent used to determine exactly the concentration of a solution of base, such...
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