Note 1 in part 1 of the Procedure warns against the use of acetone to rinse...
Homework Answers
Washing of the glassware is done in order to remove any kind of ion or salts remaining on the glassware used in the previous experiment. These ions and salts should be completely soluble in the solvent used for rinsing the glassware. There are some ionic salts that are insoluble in acetone and can be easily removed by water. Hence. Acetone should be avoided.
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Note 1 in part 1 of the Procedure warns against the use of acetone
to rinse...
It is recommended that the glassware used in the Grignard experiment not be rinsed with acetone...
It is recommended that the glassware used in the Grignard experiment not be rinsed with acetone before use. Why? Provide an equation that describes the undesirable effect of acetone on the attempt to form a Grignard reagent.
For this experiment, you will design part of the procedure yourself. While the instructions for the...
For this experiment, you will design part of the procedure yourself. While the instructions for the titration are provided, volumes and masses are not. In your data section, copy over what you figure out here for the procedure (see formatting guidelines). Be sure to show your work for these calculations! 4. The vinegar samples that are provided in this experiment are close to 0.1 M in acetic acid. You will measure out samples with a volumetric pipet. a. What volume...
2. In an experiment similar to the procedure described in Part B of the lab procedure, 2.500 g of MgO were combined wit...
2. In an experiment similar to the procedure described in Part B of the lab procedure, 2.500 g of MgO were combined with 125 mL of 1.0 M HCl. The temperature increased by 9.6°C. Calculate the enthalpy of reaction per mole of MgO for: Mg2+ (aq) + H20 (1) ► MgO (s) + 2 H+ (aq) (Note: you will need to use values that are given in the background section of this lab packet, such as the density of 1.0...
All waste should be disposed in the labeled waste container for this experiment PROCEDURE Part 1:...
All waste should be disposed in the labeled waste container for this experiment PROCEDURE Part 1: Research Design/Proposal 1. Form a research team of 2-3 students 2. Design a galvanic cell, using available materials listed by instructor. Decide all parameters of the cell, including all materials. Draw detailed cell diagrams and calculate theoretical cell potentials. List choices and amounts of ionic compounds for making the half-cell solutions as well as the salt bridge solution. The instructor will determine availability of...
PROCEDURE 1. Prepare three 100 mL beakers for this experiment. Use the molecular weights on the bottles to calculate the amount of solid to use. a. *b. Prepare 25 mL of a 10 M NaOH solution (concentr...
PROCEDURE 1. Prepare three 100 mL beakers for this experiment. Use the molecular weights on the bottles to calculate the amount of solid to use. a. *b. Prepare 25 mL of a 10 M NaOH solution (concentrated NaOH solution). Calculate the amount of solid NaOH needed to make. *c. Prepare 50 mL of a 20 mM histidine solution (calculate the amount of solid histidine needed to make it, m.w. 209.6 g/mol). In the fume hood, add 3 drops of concentrated...
procedure and test result QUESTIONS 1. The first line in the procedure states that all of...
procedure and test result
QUESTIONS 1. The first line in the procedure states that all of the cations have either nitrate or chloride as the counter lon. Explain why all of the cations have either nitrate ion or chloride ion as the counter ion. Why are other anions not used? 2. The second line in the procedure states that all of the anions have either sodium or potassium ion as the counter ion. Explain why all the anions have sodium...
Final M of Acetone, Final M of H+ (hydrogen) and I2 (iodide)? Procedure: • Collect about...
Final M of Acetone, Final M of H+ (hydrogen) and I2
(iodide)?
Procedure: • Collect about 5 mL of each of the three solutions (IM HCl and 0.005M I/KI) in separate 10 ml beakers. Collect 4M acetone in an Erlenmeyer flask and cover it with a stopper it to avoid evaporation. Perform each of the runs three times. Record the individual time and take the average. Run #1 Use an automatic delivery pipet. Pipet exactly 200 ul acetone, 200 uL...
How would you use separation techniques to recover acetone, 4-carboxyazobenzene, 1-propanol, and cumene in a laboratory...
How would you use separation techniques to recover acetone,
4-carboxyazobenzene, 1-propanol, and cumene in a laboratory
experiment.
Techniques learned are: Solvent recrystallization, thin layer
chromatography, column chromatography, liquid-liquid extraction,
distillation. (Would prefer not to do a distillation as this times
a long time).
Your company has designed a new process to dye rubbers. The process uses cumene to swell the material allowing the organic dye 4-carboxyazobenzene to penetrate more easily. The resulting rubber is able to retain its color, and...
Using MASM Please! Part 1: Call Mul from a procedure (50 pts) Create a procedure, and in that pro...
Using MASM Please! Part 1: Call Mul from a procedure (50 pts) Create a procedure, and in that procedure multiply two numbers together using mul. Then call the procedure from the main procedure. Part 2: Do bitwise mulitiplication using only shift and add statements (30 pts) In your multiplication procedure multiply two numbers not using mul but by combining a fixed number of shift and add commands. For this part you only need to be able to handle 8 bit...
Betty obtains a judgment in court against Veronica. Veronica works at Archie’s diner as a waitress....
Betty obtains a judgment in court against Veronica. Veronica works at Archie’s diner as a waitress. In order to collect her judgment, should Betty use the garnishment procedure? Is it available? Why or why not?
It is recommended that the glassware used in the Grignard experiment not be rinsed with acetone before use. Why? Provide an equation that describes the undesirable effect of acetone on the attempt to form a Grignard reagent.
For this experiment, you will design part of the procedure yourself. While the instructions for the titration are provided, volumes and masses are not. In your data section, copy over what you figure out here for the procedure (see formatting guidelines). Be sure to show your work for these calculations! 4. The vinegar samples that are provided in this experiment are close to 0.1 M in acetic acid. You will measure out samples with a volumetric pipet. a. What volume...
2. In an experiment similar to the procedure described in Part B of the lab procedure, 2.500 g of MgO were combined with 125 mL of 1.0 M HCl. The temperature increased by 9.6°C. Calculate the enthalpy of reaction per mole of MgO for: Mg2+ (aq) + H20 (1) ► MgO (s) + 2 H+ (aq) (Note: you will need to use values that are given in the background section of this lab packet, such as the density of 1.0...
All waste should be disposed in the labeled waste container for this experiment PROCEDURE Part 1: Research Design/Proposal 1. Form a research team of 2-3 students 2. Design a galvanic cell, using available materials listed by instructor. Decide all parameters of the cell, including all materials. Draw detailed cell diagrams and calculate theoretical cell potentials. List choices and amounts of ionic compounds for making the half-cell solutions as well as the salt bridge solution. The instructor will determine availability of...
PROCEDURE 1. Prepare three 100 mL beakers for this experiment. Use the molecular weights on the bottles to calculate the amount of solid to use. a. *b. Prepare 25 mL of a 10 M NaOH solution (concentrated NaOH solution). Calculate the amount of solid NaOH needed to make. *c. Prepare 50 mL of a 20 mM histidine solution (calculate the amount of solid histidine needed to make it, m.w. 209.6 g/mol). In the fume hood, add 3 drops of concentrated...
procedure and test result
QUESTIONS 1. The first line in the procedure states that all of the cations have either nitrate or chloride as the counter lon. Explain why all of the cations have either nitrate ion or chloride ion as the counter ion. Why are other anions not used? 2. The second line in the procedure states that all of the anions have either sodium or potassium ion as the counter ion. Explain why all the anions have sodium...
Final M of Acetone, Final M of H+ (hydrogen) and I2
(iodide)?
Procedure: • Collect about 5 mL of each of the three solutions (IM HCl and 0.005M I/KI) in separate 10 ml beakers. Collect 4M acetone in an Erlenmeyer flask and cover it with a stopper it to avoid evaporation. Perform each of the runs three times. Record the individual time and take the average. Run #1 Use an automatic delivery pipet. Pipet exactly 200 ul acetone, 200 uL...
How would you use separation techniques to recover acetone,
4-carboxyazobenzene, 1-propanol, and cumene in a laboratory
experiment.
Techniques learned are: Solvent recrystallization, thin layer
chromatography, column chromatography, liquid-liquid extraction,
distillation. (Would prefer not to do a distillation as this times
a long time).
Your company has designed a new process to dye rubbers. The process uses cumene to swell the material allowing the organic dye 4-carboxyazobenzene to penetrate more easily. The resulting rubber is able to retain its color, and...
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