1a. How did the electrolyte properties of NaCl solution compare as you added more salt to the water? Explain.

1b. Show equation(s) for the dissolution of salt vs. sugar to explain (at a molecular level) the reason behind your answer to #1. (Write two chemical equations with proper state symbols.)

1c. What is the polarity of Acetone, C3H6O?

1d. What is the dominant intermolecular force of Acetone, C3H6O?

1e. What is the dominant intermolecular force of Methyl alcohol, CH3OH?

1 Explain the meaning of the term mutarotation.

2 Draw the structure of a disaccharide made up of two D-glucose units. The glycosidic bond is

    α-1,6-glycosidic bond.

3 Trehalose is a disaccharide that can be obtained from fungi, sea urchins and insects. Acid hydrolysis of

    trehalose yields only D-glucose. Trehalose is hydrolysed by α-glucosidase and not by β-glucosidase

    enzymes. Methylation of trehalose followed by hydrolysis yields two molar equivalents of

    2,3,4,6-tetra-O-methyl-D-glucopyranose.

1.   From the following experimental data, deduce the structure of trehalose.
2. What will be the effect of trehalose on Fehling’s solution?

4(a) Suggest a test you will use to show that a given food substance contains protein.

2. Show how you will use

1. Modified Gabriel’s Synthsis
2. Streckers’s Synthesis   to prepare phenylalanine in the laboratory.

5 (a) Describe in detail how you will determine the primary structure of protein.

(b) You have been given a mixture of lysine, histidine and cysteine. The isoelectric point of the amino acids are as follows:

Histidine                        7.64

Lysine                             9.74

Cystenie                         5.02

Show how you will separate the mixture into the pure forms. State and describe any instrument that you will use to separate the components in the mixture.

6 (a) A decapeptide has the following amino acid composition:

         Ala₂ , Arg, Cys, Glu, Gly, Leu, Lys, Phe, Val

       Partial hydrolysis yields the following tripeptides:

       Cys-Glu-Leu + Gly-Arg-Cys + Leu-Ala-Ala+ Lys-Val-Phe + Val-Phe-Gly.

       Reaction of the decapeptide with 2,4-dinitrofluorobenzene yields 2,4-dinitrophenylysine. From the

       experimental data, deduce the primary structure of the decapeptide.

   (b) Suggest a scheme you will follow to synthesize the dipeptide Ala-Gly

Question 4

Given the following swap rates, Charlton Ferguson, Chief Finance Officer of Red Devils Ltd., decides to enter into a four-year currency swap agreement to receive pounds and pay euros, on a notional principal of £33,000,000. The spot exchange rate at the time of the swap is €1.8300/£.

          Swap Rates

          Years           £ bid £ ask            € bid € ask

          2                  4.08% 4.28%           3.10% 3.30%

          3                  4.18% 4.33%           3.25% 3.48%

          4                  4.23% 4.48%           3.30% 3.60%

a)       Calculate all principal and interest payments, in both pounds and euros, over the life of the currency swap agreement.

b)       Assuming that two years into the swap agreement, Charlton Ferguson decides to unwind the swap agreement and settle it in pounds. Assume that a two-year fixed rate of interest on pounds is 4.50%, a two-year fixed rate of interest on euros is 3.80%, and the spot rate of exchange is now €1.7788/£. Find the net settlement amount of unwinding the swap and state who pays to whom the net settlement amount (Red Devils Ltd. pays to swap dealer or swap dealer pays to Red Devils Ltd.).

Read the Following Background Information: PI plans to headquarter the business in commercial space in a local shopping center. The PI headquarters will include private business offices, a reception area, and a conference meeting and planning space to which potential and existing customers will be invited to discuss proposals for painting jobs, paint products, and to complete contracts for painting jobs. The business space will be open to the public to collect information and inquire about PI services, examine paint displays, and view photos and exhibits from ongoing and past painting jobs. The shopping center in which PI will be headquartered is busy and heavily trafficked with customers every day. The PI owners are concerned about potential accidents on the store property and other liabilities that could arise with customers and employees. At the direction of your supervisors at BC, you are tasked to develop a plan to identify and minimize potential tort risks that PI faces in its public retail store operations. PI owners will use the plan to refine policies and procedures to prevent and/or minimize liabilities for PI in the retail facility. Instructions For this project, you will write a plan to be presented in a PowerPoint presentation. There is no set number of slides but include a title page and a reference page. Use the note section to discuss, explain and support the ideas and conclusions presented in the presentation. The notes must be complete, clear and comprehensive and submitted with the Power Point in order to receive full credit. The plan focuses on potential tort liabilities (except product liability, which is not included in this project.) The Power Point presentation will: A. identify and describe specific tort liabilities that PI could face in its retail store operations; B. develop and explain policies and/or procedures PI could implement to prevent or minimize these tort risks; C. evaluate and discuss how PI owners should orient employees to apply these policies and/or procedures to prevent or minimize identified tort risks. You should use only assigned resources available in the classroom for the project. Use in text citations, as needed. Include a References list of cited resources. Label each part of the Power Point as follows: A. Potential Tort Liabilities B. Policies and Procedures to Minimize Tort Risks C. Employee Orientation

electronic psychrometric plotting program, let’s consider atmospheric conditions at sea level with a dry bulb temperature (Tdry bulb ) of 23˚C and a relative humidity (RH) of 30%. Plot this state point on the pyschrometric chart available in PsycPro software. Use PsycPro to determine the following: a. Wet bulb temperature (WBT) of the air b. Dew point temperature (DPT) of the air c. Humidity ratio (specific humidity) d. Enthalpy e. Specific volume of the air (i) Provide the values for the about parameters as found from the pshchrometric chart (ii) Provide a screenshots of your completed PsycPro chart with the following: a) values of above different parameters and b) with the above plotted state point (two screenshots) Instructions for using PsycPro can be found on the course Moodle. You can verify your answers using another online psychrometric program or a paper chart, if you wish.

Modern Physics: Schro?dinger Equation

Use the uncertainty principle involving ?x and ?p to explain why none of the potential wells investigated have a ground state energy of E = 0.

1. A researcher has gathered information from a survey of 25 randomly selected university campuses. From this data, it was reported that the average number of reported sexual assaults on these campuses in the last year was 12 with a standard deviation of 3. Calculate a 95% confidence interval to estimate the average number of sexual assaults on Canadian university campuses as a whole. Remember to report your confidence interval in a complete sentence and describe what it means. (15%)

2. A survey was conducted at Acadia on attitudes toward the campus alcohol policy against drinking games in residence with 262 randomly selected residence students. In response to the question, “Are you in favour of the drinking games policy?” 25% were in favour. What is the 99% confidence interval to estimate the percentage of all Acadia residence students regarding the drinking game policy? Remember to report your confidence interval in a complete sentence and describe what it means. (15%)

3. School boards in Nova Scotia, on average receive a budget of $623.00 per student from the provincial government. A random sample of 45 rural schools report that they received on average $605 per student with a standard deviation of $74. Is there a significant difference in the budgets between rural schools and the whole province? (20%)

This question is an example of statistical research using hypothesis testing. You will need to use the 5 step model of hypothesis testing to test for significance at a=.05.

• State assumptions

• State the null hypothesis and the alternative hypothesis
• State the appropriate hypothesis test for each question and determine your critical scores for testing significance at .05
• Calculate your test statistic making sure you show your formulas
• Interpret your results using complete sentences indicating is significance was determined

4. Nationally, the unemployment rate for teenage males is 18%. A random sample of 323 teenage males in your area reveals an unemployment rate of 21.7%. Are our local teens more likely to be unemployed?   (20%) This question is an example of statistical research using hypothesis testing. You will need to use the 5 step model of hypothesis testing to test for significance at a=.01.

• State assumptions

• State the null hypothesis and the alternative hypothesis
• State the appropriate hypothesis test for each question and determine your critical scores for testing significance at .01
• Calculate your test statistic making sure you show your formulas
• Interpret your results using complete sentences indicating is significance was determined

USING SPSS

5. What is the 99% confidence interval for the proportion of Canadians that have more than a high-school education? For this question you will need to use your data (your sample of Canadian) from the Canadian Community Health Survey. Use the variable (EDUDH04), create a new variable where 1=more than high school, and 0= every other VALID response. Calculate the statistics you need to construct your confidence internal, and then calculate the interval by hand by using the appropriate formula. (20%)

Copy and past a frequency table of your dummy variable (make sure your new variable is labelled) into your assignment. Copy and paste your statistics box. Write your answer in a complete sentence and describe what it means.

Suppose you work at a local state hospital. In 2015, the infectious disease department of the hospital was operating at max capacity. Your supervisor has given you the job of presenting to the hospital leadership board about the number of patients who contracted infections while at 30 different hospitals in your state in 2015. The board will use your findings to make informed decisions about possible expansion of the infectious disease department. You will review the data, create visuals for the data, and create a presentation for the hospital leadership board to help with the decision.

1. Explain the following behaviour by two employees and whether it is appropriate. Sam comes from a country where it is acceptable to wink at others.

Sam has done this as a habit all his life. When Sam arrived in Australia, he was reported for inappropriate behaviour at his workplace. Explain in detail to Sam what has happened.

Min hugs everyone briefly when they meet. But when Min was on a business trip to South East Asia, Min was told it was wrong to hug members of the opposite sex. Can you explain to Min what is the problem here?

2.

1. A 1.5- volt battery is connected across an LED bulb, but the bulb does not “light up.” What are two possible reasons why it’s not lighting? (Both the battery and LED are in working order,)

2. ) In what way are an LED and a solar cell alike? In what ways are they different

Please explain everything in detail, I have a lot of difficulty with science. Thank you!