Homework Answers
Molecular weight of ferric chloride= 162.2g/mol
Molecular weight of methylene blue= 319.85 g/mol
Ferric chloride has half the molecular weight as that of methylene blue, thereby ferric chloride would diffuse faster that that of methylene blue.
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4. If this experiment was also performed using a third chemical, Ferric chloride (FeCl3), how would...
Experiment 1: Diffusion through Gelatin Data Tables Purpose (What question is this experiment designed to answer?):...
Experiment 1: Diffusion through Gelatin
Data Tables
Purpose (What question is this experiment
designed to answer?):
Hypothesis (Based on what you’ve learned in the
pre-lab materials, write and If/Then statement regarding the
outcome of this experiment.):
Table 1: Diffusion Data
Test Tube
Distance After 4 Hours (mm)
Distance After 24 Hours (mm)
A
B
C
Claim (What are the results of your
experiment?):
Evidence (What data did you collect that
supports your claim? Explain the meaning behind the data and...
please show the work Prelab for Experiment 5 - Conductivity and Chemical Reactions 2.34E-4. The 'E' must be capitalized." Scientific notation format The prelab questions mirror tho...
please show the work
Prelab for Experiment 5 - Conductivity and Chemical Reactions 2.34E-4. The 'E' must be capitalized." Scientific notation format 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 much easier time completing the Data Analysis Sheet at the end of the experiment. Student information Enter your name (first and last) and the last 4 digits of...
Answer all please! CHM24100 Experiment s Chemical Reactions and Equations Name PRE LAB For Experiment 5...
Answer all please!
CHM24100 Experiment s Chemical Reactions and Equations Name PRE LAB For Experiment 5 pre-lab, you will need to include purpose, table of chemical reactants and all balanced chemical reactions that take place during the experiment. Preparing the data tables before lab will ensure that you are not rushed and that your data will be in an easy to read manner. Instructor Initials for Successful Pre-lab Notebook: 1. State the Law of Conservation of Mass 2. In this...
Microscale techniques: In today's experiment we will be using very small amounts of chemical reactants. This...
Microscale techniques: In today's experiment we will be using very small amounts of chemical reactants. This method is generally less expensive and more environmentally-friendly than traditional "test tube" chemistry. Some of the waste products produced in today's experiment, particularly those containing lead and barium, are harmful to the environment. By using such small amounts of chemical reactants we generate far less waste than by using larger scale methods. Procedure 1. Put on your safety goggles. Be sure to wear them...
POST-LAB QUESTIONS / HOMEWORK 1. A student performed the following osmosis experiment, similar to the one...
POST-LAB QUESTIONS / HOMEWORK 1. A student performed the following osmosis experiment, similar to the one you did, using a different combination of substances. Determine his/her results and explain them by answering the questions in the table by filling in the blank boxes. Assume that the dialysis bag is impermeable to sucrose. Set-up 1 Set-up 2 Set-up 3 Set-up 4 Set-up 5 Bags 15 mL in each Tap water Tap water 55% sucrose 21% sucrose solution solution Tap water Beakers...
there is an experiment. Does diet affect blood pressure? All subjects go through all three treatments....
there is an experiment. Does diet affect blood pressure? All subjects go through all three treatments. First, they eat a diet with a lot of salt. Their blood pressure is measured. Second, they eat a diet with a lot of sugar. Their blood pressure is measured again. Third, they eat a diet with a lot of protein. Their blood pressure is measured a third time. Describe exactly what an order effect may look like. Why are carry over effects problematic....
1. Write a list of all the compounds which are soluble in water. Include also all the compounds appearing at the t...
1. Write a list of all the compounds which are soluble in water. Include also all the compounds appearing at the top and side of the table. Base this list only on the data from this experiment. (This is an exercise in deductive reasoning. Hint: Look at the mixtures in which no precipitate formed. What does the experiment tell you about those possible products? If you can't figure out how to do this, ask your instructor for another hint.) Include...
Part IlI: Write out two chemical equations for the reactions which were performed in the hydrolys...
Please answer parts II & III. Page 63 for reference is
also attached.
Part IlI: Write out two chemical equations for the reactions which were performed in the hydrolysis of acetamide. See page 63. Be sure to include the names of all reactants and pro ducts. How do these reactions support your data (odors and pH)? Part IV: Write out the two chemical equations for the reactions which were performed in the hydrolys and products. How do these reactions support...
Part A 1. If you had used more methylene chloride in each step, you could have...
Part A 1. If you had used more methylene chloride in each step, you could have extracted more caffeine. Explain why you did not. Hint - What step would have taken longer (Hint: not drying). PART A Mass of Beaker & Caffeine Mass of Beaker 167.750g 67.6809 Mass of Caffeine 0.0 75 Calculations. Show your work and circle the answers. Mass of caffeine recovered: 012919 b) Actual:.07 % caffeine recovered: a) Predicted: 9 7:213% b) Actual: 92.105% PART B Unknown...
Please explain steps thoroughly of how one would solve this using technology. Is there also a...
Please explain steps thoroughly of how one would solve this
using technology. Is there also a way to avoid using the standard
normal table or is it necessary? thanks!
A particular fruit's weights are normally distributed, with a mean of 456 grams and a standard deviation of 7 grams. If you pick 21 fruits at random, then 16% of the time, their mean weight will be greater than how many grams? Give your answer to the nearest gram.
Experiment 1: Diffusion through Gelatin
Data Tables
Purpose (What question is this experiment
designed to answer?):
Hypothesis (Based on what you’ve learned in the
pre-lab materials, write and If/Then statement regarding the
outcome of this experiment.):
Table 1: Diffusion Data
Test Tube
Distance After 4 Hours (mm)
Distance After 24 Hours (mm)
A
B
C
Claim (What are the results of your
experiment?):
Evidence (What data did you collect that
supports your claim? Explain the meaning behind the data and...
please show the work
Prelab for Experiment 5 - Conductivity and Chemical Reactions 2.34E-4. The 'E' must be capitalized." Scientific notation format 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 much easier time completing the Data Analysis Sheet at the end of the experiment. Student information Enter your name (first and last) and the last 4 digits of...
Answer all please!
CHM24100 Experiment s Chemical Reactions and Equations Name PRE LAB For Experiment 5 pre-lab, you will need to include purpose, table of chemical reactants and all balanced chemical reactions that take place during the experiment. Preparing the data tables before lab will ensure that you are not rushed and that your data will be in an easy to read manner. Instructor Initials for Successful Pre-lab Notebook: 1. State the Law of Conservation of Mass 2. In this...
Microscale techniques: In today's experiment we will be using very small amounts of chemical reactants. This method is generally less expensive and more environmentally-friendly than traditional "test tube" chemistry. Some of the waste products produced in today's experiment, particularly those containing lead and barium, are harmful to the environment. By using such small amounts of chemical reactants we generate far less waste than by using larger scale methods. Procedure 1. Put on your safety goggles. Be sure to wear them...
POST-LAB QUESTIONS / HOMEWORK 1. A student performed the following osmosis experiment, similar to the one you did, using a different combination of substances. Determine his/her results and explain them by answering the questions in the table by filling in the blank boxes. Assume that the dialysis bag is impermeable to sucrose. Set-up 1 Set-up 2 Set-up 3 Set-up 4 Set-up 5 Bags 15 mL in each Tap water Tap water 55% sucrose 21% sucrose solution solution Tap water Beakers...
1. Write a list of all the compounds which are soluble in water. Include also all the compounds appearing at the top and side of the table. Base this list only on the data from this experiment. (This is an exercise in deductive reasoning. Hint: Look at the mixtures in which no precipitate formed. What does the experiment tell you about those possible products? If you can't figure out how to do this, ask your instructor for another hint.) Include...
Please answer parts II & III. Page 63 for reference is
also attached.
Part IlI: Write out two chemical equations for the reactions which were performed in the hydrolysis of acetamide. See page 63. Be sure to include the names of all reactants and pro ducts. How do these reactions support your data (odors and pH)? Part IV: Write out the two chemical equations for the reactions which were performed in the hydrolys and products. How do these reactions support...
Part A 1. If you had used more methylene chloride in each step, you could have extracted more caffeine. Explain why you did not. Hint - What step would have taken longer (Hint: not drying). PART A Mass of Beaker & Caffeine Mass of Beaker 167.750g 67.6809 Mass of Caffeine 0.0 75 Calculations. Show your work and circle the answers. Mass of caffeine recovered: 012919 b) Actual:.07 % caffeine recovered: a) Predicted: 9 7:213% b) Actual: 92.105% PART B Unknown...
Please explain steps thoroughly of how one would solve this
using technology. Is there also a way to avoid using the standard
normal table or is it necessary? thanks!
A particular fruit's weights are normally distributed, with a mean of 456 grams and a standard deviation of 7 grams. If you pick 21 fruits at random, then 16% of the time, their mean weight will be greater than how many grams? Give your answer to the nearest gram.
Most questions answered within 3 hours.
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