What should Dr. Farquart’s conclusion be?Why do you think 8 people in group B reported feeling better?

Read the following proposed controlled experiments and answer the questions.
Experiment 1: Serious Sandwiches
Dr. Farquart wants to make her home-town a nicer place to live. She has created a new sauce that she predicts will reduce the production of body gas associated with eating sandwiches from the local cafe. She recruits 100 customers with a history of gas problems. She has 50 of them eat sandwiches with the new sauce.
The other 50 eat sandwiches with sauce that looks just like the new sauce but is really only a mixture of mayonnaise and food coloring. Both groups were told that they were eating the sauce that would reduce gas production. Two hours after eating the sandwiches, 30 customers in group A reported having fewer gas problems and 8 customers in group B reported having fewer gas problems.
1. Which group represents the control group?
2. What is the independent variable?
3. What is the dependent variable?
4. What should Dr. Farquart’s conclusion be?
5. Why do you think 8 people in group B reported feeling better?

How do you know your sample does not contain any of the reactants?What temperature did your product come off?

Ethyl ethanoate

Pure ethyl ethanoate boils at 73oC.
This is the same temperature at which you should have seen the product was distilled.
What temperature did your product come off? This is your boiling point.

Infrared spectrum:
Use a pipette to take a drop of your sample. Place it in between two IR discs, and place into the IR machine.
A spectrum will be produced. Label all peaks fully, in particular pay attention to the C=O.
How do you know your sample does not contain any of the reactants?

Explain Evidence-Based strategies that the nurse and interdisciplinary team can use to effectively manage patients’ protected health information .

Explain Evidence-Based strategies that the nurse and interdisciplinary team can use to effectively manage patients’ protected health information (PHI)

Drawing from your own career and experiences, write about your insights into this topic

Explain Evidence-Based strategies that the nurse and interdisciplinary team can use to effectively manage patients’ protected health information .

Rubric

25

20

15

10

5

Content

Discussion response contains appropriate items and information .

Content is accurate and all required information is presented in a logical order.

Content is accurate but some required information is missing and/or not presented in a logical order, but is still generally easy to follow.

Content is accurate but some required information is missing and/or not presented in a logical order, making it difficult to follow.

Content is either questionable or incomplete. Information is not presented in a logical order, making it difficult to follow.

Content is inaccurate. Information is incomplete, inaccurate, or not presented in a logical order, making it difficult to follow.

Write a balanced double replacement reaction for each of the following sets of aqueous reagents. Be sure to include the phase of each species.

Answer the following questions on a separate sheet of paper 1. The sulfite ion, S032-, reacts with acid analogous to the way carbonate, CO32-, reacts. Write a balanced chemical equation, including phases, for the reaction of potassium sulfite with hydrobromic acid.

Write a balanced double replacement reaction for each of the following sets of aqueous reagents. Be sure to include the phase of each species. For any set that is predicted to give a reaction, using the table on page X, indicate the observation that would be expected.

(a) zinc bromide and magnesium acetate

(b) nitric acid and ammonium hydroxide (c) sodium sulfite and potassium hydroxide (d) ammonium carbonate and hydrochloric acid (e) potassium phosphate and calcium iodide (0 lead(II)nitrate and sulfuric acid (h) silver nitrate and lithium chloride

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What is the advantage and disadvantage of simple and fractional distillation?What is the vapor pressure  of mixture at 50 oC?

Simple and Fractional distillation – Lab Report Format
1. Introduction
2. Experimental condition
3. Data
• Data table for simple and fractional distillation your unknown mixture
• In one window, show the simple and fractional distillation graphs with line graph format •The relative ratio of unknown compounds
• Name and ratio of two of unknowns in your mixture.
4. Results and Discussion
• What is the advantage and disadvantage of simple and fractional distillation?
•Compare the simple and fractional distillation with respect to your unknown
• How the identity and ratio of unknown compounds were identified by distillation

1. A mixture of two miscible liquids with a widely different boiling point is distilled. The temperature of  distilled liquid is observed to plateau and then drop before rising again. Explain the temperature drop.
2. One mole of compound A, with vapor pressure 420 mmHg at 50 oC, mixed with 5 moles of compound  B, with vapor pressure 480 mmHg at 50 oC to form a homogeneous solution. What is the vapor pressure  of mixture at 50 oC?

Research the 4 possible scents you will like to make based on the possible alcohols and carboxylic acids.

Making Scents

Research the 4 possible scents you will like to make based on the possible alcohols and carboxylic acids.
Intro, materials, procedure, number of possible esters, and the table of the 4 esters need for this project.
Dear writer please note, you don’t have to do the Observation and Conclusion because if you don’t do the experiment then you can’t do that.
Full Paper details are attached in this Google Docs LINK- https://docs.google.com/document/d/1sEDdOcPEG5s7s0G9TgsCfLf3Jp7TbF9gtXnYzyBEW6o/edit?usp=sharing

Assess, on the basis of research, the importance of quantitative accuracy in industrial chemical processes and the potential impact on the environment if quantitative accuracy is not observed.

SCH3U Science, Technology, Science & the Environment Research Project
Project Overview
For this project, you will select ONE of the following investigations to report on:
1. Analyse processes in the home, the workplace, or the environmental sector that involve the use of chemical quantities and calculations; or,
2. Assess, on the basis of research, the importance of quantitative accuracy in industrial chemical processes and the potential impact on the environment if quantitative accuracy is not observed.

Estimate the specific activity of the two samples.Why is it important/useful to measure specific activity?

Data Handling Task Document
Lactate dehydrogenase is an enzyme which can be found in most major tissues. Serum levels of LDH are elevated in a wide variety of pathologic conditions, most notably cardiac and hepatic disease. LDH catalyses the formation of lactate from pyruvate and at the same time oxidises.
NADH to NAD+. This is a reversible reaction as shown below.
The measurement of LDH in the serum can be used to diagnose whether tissue damage has occurred.
Students were tasked with the development of an assay for LDH activity in human serum samples from a control patient and a patient who had suffered cardiac damage. Two samples were provided, labelled C and D .
The students decided to follow the loss of absorbance of NADH in an appropriate assay buffer containing pyruvate as the substrate.
Q1 (a) By examining the absorbance spectra of both NAD+ and NADH below, comment why this
approach is suitable strategy.
Q1 (b). What would be the optimum wavelength at which they should measure
absorbance? Give a reason for your answer.
The students conducted the assay for LDH activity using the two serum samples. Each cuvette contained 3ml of a suitable assay buffer . 20 microlitres of either serum was added to the cuvette and the absorbance values immediately
recorded at the optimum wavelength for a period of 5 minutes .
Protein concentration of serum sample

Change in absorbance at opti
per minute
Control serum (C) 8 -0.04
Diseased serum (D) 7.8 -0.6
Q2. Using the molar absorption coefficient of NADH as 6220 M-1 cm-1, and by application of the
Beer-Lambert law, estimate the enzyme activity in the two samples . Express activity as
moles per second.
Q3 (a) Estimate the specific activity of the two samples
Q3 (b) Why is it important/useful to measure specific activity?
The students were given a compound X. They are told that it inhibits LDH activity. The students decided to check that by including it in the assay and testing the effect of the inhibitor using various concentrations of substrate , in the presence of NADH. They evaluated the rates of the LDH reaction with and without the inhibitor compound. Data obtained are shown below.
1 2.04 1.18
2 2.86 2.0
4 3.70 2.8
8 4.35 3.6
12 4.76 4.0
Q4. Estimate Vmax and Km for LDH with and without the inhibitor.
Q5 (a) Determine the type of inhibition of the enzymatic reaction from the data the students collected in the presence and absence of the inhibitor X.
Q5 (b) Students were told that compound X is N-propyl oxamate. The structures of pyruvate and N-propyl oxamate are shown below. Is the information shown below consistent with your answer in Q5 part (a) ? Explain your answer.