1)Determine the pH of each solution.

Part A

0.20 M KCHO2

Express your answer to two decimal places.

Part B

0.21 M CH3NH3I

Express your answer to two decimal places.

Part C

0.22 M KI

Express your answer to two decimal places.

2)

Part A

Rank the following compounds in order of decreasing acid strength using periodic trends.

Rank the acids from strongest to weakest. To rank items as equivalent, overlap them.

LiH, H2O, HCl, HBr

E-books, an online book retailer, has two operating departments—corporate sales and consumer sales—and two support departments—human resources and information systems. Each sales department conducts merchandising and marketing operations independently. E-books uses number of employees to allocate human resources costs and processing time to allocate information systems costs. The following data are available for September 2017:

The company allocates the Human Resources Department cost using the budgeted number of employees in each department. The costs of Information systems department are allocated to other departments using the number of minutes of information processing time for those departments.

a) Allocate the costs of the support departments to the operating departments using the reciprocal cost allocation method

The different interpretations which were given for Human Resource Management produced two Schools of Thoughts – the Soft and the Hard Versions. They are considered as two main models of HRM. The soft version focuses on human’s side and the hard part on the job. One of the first explicit statements of the Human Resource Management concept was framed by the Michigan School of Thought under the leadership of Fombrun et al in 1984. The model was also known as the “Matching model”. This model also shows that there is a tight fit between the organization strategy, the organization structure and the Human Resource Management system. Fombrum et al have argued that in this model the practices of HRM is made up of the human resource cycle comprising of 4 generic processes that need to be performed in mostly all organisations. They are:

1) Selection,

(2) Appraisal,

(3) Rewards,

(4) Development.

Considering these four processes, describe clearly with examples how they are implemented and managed in organisations to justify that they are making full-use of HRM activities for their success and competitiveness. Substantiate your descriptions with examples. You can refer to any existing enterprise.

Over the next week, we will be discussing the structure of macromolecules, extremely large molecules the masses of which can exceed 100,000 daltons. One such macromolecule is deoxyribonucleic acid (DNA). There are few discoveries in the history of science that have had as profound an effect on our understanding of how life “works” than the elucidation of the structure of DNA by Watson and Crick. For this unit’s forum, I have assigned the original Nature paper by James Watson and Francis Crick on the Molecular Structure of Nucleic Acids. Please read the paper and answer the following questions.

https://www.nature.com/scitable/content/molecular-structure-of-nucleic-acids-a-structure-13997975

1.       What are the two most significant differences between the structure for DNA as proposed by Watson and Crick and that proposed by Pauling and Corey?

2.       What important structural function do the purine and pyrimidine bases play? Besides the constraints on hydrogen bonding, what other reason must a purine pair with a pyrimidine in the structure proposed by Watson and Crick? (Hint: Look at the crude diagram of DNA presented in the paper.)

3.       In the penultimate paragraph of their paper, the authors state that their proposed base pairing scheme suggests a possible copying mechanism for DNA. Propose a mechanism for DNA copying based on the information provided in the paper.  

4.       Pairing of bases involves hydrogen bonding (see paragraph 6). What do you think would be the consequence if instead of hydrogen bonding, the bases were held together by covalent bonds?

In the course of evolution of the eukaryotic cell, the ability to store newly synthesized molecules is associated with: a) the nucleus of prokaryotes, b) vesicles that contain enzymes that perform dehydration synthesis, c) lysosomes, d) the nucleoid area of the cytoplasm. e) proteins produced outside of the Endoplasmic reticulum.  

Answer B why?

For eukaryote cells to evolve into new types of eukaryotic organism, which of the following would one expect to occur? a) All the cells are identical b) The endoplasmic reticulum is not involved. c) These specialized cells activate only the genes in their nucleoid area. d) Cells must be getting new genetic mutations and more DNA e) none of these are true.

answer D why?

In the evolution of the eukaryotic cell, these cells have key changes that include which of the following:

a) These cells reproduce by copying their DNA perfectly each generation.

b) They have their DNA in the nucleoid area.

c) have adapted the mesosome membrane system of the prokaryote to form a nucleus and an endoplasmic reticulum.

d) each new type of new eukaryote cell has its mRNA unchanged from its original mRNA,

e) none of these are true.

Most of the carbon dioxide we exhale is produced in:

A) glycolysis.

B) photosynthesis in the chloroplasts,

C) formation of pyruvate during glycolysis,

D) the mitochondrion during the Krebs cycle,

E) none of these.

Which is true of Prokaryote cells?

A) Their DNA exists in a nucleoid area the synthesis of proteins depends on random interactions between mRNA and rRNA,

B) They contain membrane-bounded compartments or organelles.

C) A true nucleus contains the DNA in the form of chromosomes

D) They all contain mitochondria

E) They contain many organelles in the cytoplasm

In both Prokaryotes and Eukaryotes, which of the following structures can cross cell membranes using the same protein channels as water?

A) mRNA,

B) triglycerides,

C) large, non-polar molecules,

D) DNA,

E) gases (CO₂ and O₂) and small ions.

plz explain the answer , Thank you

Traditionally, human resource management practices were developed and administered by the organization’s human resource department. Line managers/supervisors are now playing a major role in developing and implementing HRM practices.

Why do you think non-HR managers are becoming more involved and what do you see as the main benefits for more involvement in HR from managers and supervisors?

Must be 250 words

Please make copy paste available

Epidemiologists study the occurrence and transmieeion of human diseases on a global scale. this is no easy task since pathogens, or disease-causing organisms are everywhere. it is virtually impossible to avoid coming into contact with a potentially pathogenic microorganism in the modern world.
INFLAMMATION: PLEASE provide background about a disease-causing microbe. is it a virus, bacterium, etc.? what are the symptoms of the disease.
Describe the impact of this microbe on human health. why would this disease be of concern to epidemiologists? what is the prevalence of the disease in the human population?
describe any treatments available for the disease. include vaccinations and chemotherapeutic treatment options.
in your option, would the innate immune system or the adaptive immune system be more effective at fighting off this infection?
this must be written 800 to a 1000 words.

thank you

Discuss the Extinction Risks for Coral Reefs as a result of Coral Bleaching.
Coral reef ecosystems around the globe are threatened by human interferences and climate
change. This has led to many scientists conducting studies on global coral reef ecosystems to gain
a better understanding of the cause and effects of coral reef damage.

We will take four opportunities to engage in discussion on the selective topic such as :origins,human impacts, biodiversity, environmental factors and algal diversity . You will identify the significant that associates the topic and overall invertebrates.

Key connections:
Climate change; global warming, symbioses, diversity Important, human impact, and coral reef conservation.

Important Questions:
Can it be reversed? Or can coral habitats be restored?
Examples of resources: Primary literature information.

• According to economic growth theory, the level of the GDP and the rate of the real GDP growth rate have different economic implications about the economic well-being of a country. If you are given the options, would you rather live in a nation with a high level of GDP and a low growth rate or in a nation with a low level of GDP and a high growth rate? Why?
• Economists consider education as an investment that has both private and social benefits. Education is also the major source of human capital, which is the most important form of capital for the long term economic growth. What is the opportunity cost of investing in human capital? Do you think a country can “overinvest” in human capital? What is the opportunity cost of attending college? Explain.