Define an acid, base, and salt as they apply to chemistry and State three examples each of acids, bases, and salts commonly used in therapeutic processes.
From the examples you state, select one acid, one base, and one salt and describe specifically how and where they are used in therapeutic processes
research on buffered aspirin. On the basis of your research, respond to the following: Define a buffer and explain how a buffer works. Analyze and explain the buffer system in buffered aspirin (carboxylic acid).
In: Chemistry
the class is Exercise physiology
In: Anatomy and Physiology
Which of the following statements about metabolism are true?
1) Catabolism is the process in which complex substances are
broken down, yielding a net output of energy.
2) Metabolism is an integrated system in which many of the same
reactions participate in degradative (catabolic) and biosynthetic
(anabolic) pathways.
3) Anabolism involves the synthesis of polymeric biomolecules and
complex lipids from monomers such as fatty acids and
nucleotides.
4) All organisms require an external source of energy, such as
glucose or sunlight, for metabolic energy.
In: Biology
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± Percent Ionization In addition to the acid-dissociation constant, Ka, another measure of the strength of an acid is percent ionization, determined by the following formula:Percent ionization=[HA] ionized[HA] initial×100% Percent ionization increases with increasing Ka. Strong acids, for which Ka is very large, ionize completely (100%). For weak acids, the percent ionization changes with concentration. The more diluted the acid is, the greater percent ionization. A convenient way to keep track of changing concentrations is through what is often called an I.C.E table, where I stands for "Initial Concentration," C stands for "Change," and E stands for "Equilibrium Concentration." To create such a table, write the reaction across the top, creating the columns, and write the rows I.C.E on the left-hand side. Initial (M)Change (M)Equilibrium (M)A+ B→AB |
A certain weak acid, HA, has a Ka value of 8.5×10−7. Part A Calculate the percent ionization of HA in a 0.10 M solution. Express your answer to two significant figures and include the appropriate units.
SubmitHintsMy AnswersGive UpReview Part Part B Calculate the percent ionization of HA in a 0.010 M solution. Express your answer to two significant figures, and include the appropriate units.
SubmitHintsMy AnswersGive UpReview Part Provi |
In: Chemistry
QUESTION 21
In human cells, the activity of ____________ is required to set the transition from G1 to S phase in motion.
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only a cyclin |
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only a cyclin-dependent kinase (CDK) |
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a CDK complexed to a cyclin |
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an RNA-induced silencing complex |
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the telomerase enzyme |
QUESTION 22
Transgenic crop plants engineered by recombiant DNA technology can express genes derived from
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Another crop variety of the same species |
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Another plant species of the same genus |
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Another eukaryotic organism |
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Another cellular organism, but not viruses |
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Any oprganism, including viruses |
QUESTION 23
Which of the following occurs in both meiosis and mitosis?
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Pairing and synapsis of homologous chromosomes. |
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Formation of synaptonemal complex between homologous pairs of chromosomes. |
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Non-sister chromatids exchange large fragments of DNA between one-another. |
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Chromosomes condense, nuclear membrane dissolves. |
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Both sister chromatids of a chromosome are pulled to the same pole of the cell in anaphase. |
QUESTION 24
What is the name of the protein structure on the eukaryotic chromosome that makes physical contact with the spindle fibers during metaphase of mitosis?
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Origin of transfer |
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Kinetochores |
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Origins of replications |
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Telomere |
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Separase |
QUESTION 25
_______________bacterial strains are able to grow in minimal medium which provides only inorganic nutrients and a carbon source.
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Obligate biotrophic |
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Prototrophic |
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Necrotrophic |
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Heterotrophic |
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Auxotrophic |
QUESTION 26
Retroviruses can cause cancer by
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Bringing the cell cycle to an abrupt stop. |
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Triggering the expression of tumor suppressor genes. |
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Erroneously activating the transcription of the host cellâ s proto-oncogenes from a strong viral promoter. |
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induction of programmed cell death |
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by injecting base analogues into host cells |
QUESTION 27
Which procedure requires the removal of a single cell from a morula-stage human embryo?
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Pre-implantation genetic diagnosis |
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Reproductive cloning |
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Therapeutic cloning |
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Cloning a PCR fragment in plasmid vector |
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The genetic tansformation of a plant |
QUESTION 28
The construction of a cDNA library involves the following steps: (A) purification of mRNA from cells; (B) insertion of the double-stranded cDNA into a vector; (C) synthesis of the second cDNA strand; (D) annealing of oligo(dT) primers to polyA tails and reverse transcription of the first cDNA strand. The correct order in which these steps are performed is:
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A, B, C, D. |
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A, D, B, C. |
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D, C, A, B. |
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B, A, C, D. |
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A, D, C, B |
QUESTION 29
The cultivated coffee (Coffea arabica) is a fertile allotetraploid species with a 2n chromosome number of 44. How many chromosomes are in the gametes of Coffea arabica?
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Cannot be determined, because an allotetraploid species produces unbalanced gametes with varying number of chromosomes. |
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11 |
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22 |
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33 |
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44 |
In: Biology
San opening a branch in other city in the country, the following is unadjusted trial balance for san and its branch for the year ended 31/12/2019
Trail balance 31/12/2019:
San branch
|
Cash |
22000 |
10175 |
|
account /rec. |
12000 |
7550 |
|
Investment in Branch |
60000 |
|
|
Inventories1/1/2019 |
23000 |
11000 |
|
Allowance for valuation |
(1000) |
|
|
Prepaid rent |
8000 |
8450 |
|
Equipment |
177000 |
32450 |
|
Ordinary shares |
(200,000) |
|
|
Retained earning1/1/2019 |
(34,000) |
|
|
Dividend |
15000 |
|
|
Account payable |
(35000) |
(2725) |
|
Home office |
(51000) |
|
|
Purchases |
190,000 |
|
|
Shipment from home office |
104500 |
|
|
Shipment to branch |
(110,000) |
|
|
Sales |
(169000) |
(144700) |
|
Operating expenses |
42000 |
24300 |
|
total |
0000 |
0000 |
The following information are available for you not considered in the trial balance:
1- the branch sent 1700$ cash for the home office in 31/12/2019.
2- the home office replenished the branch petty cash in 31/12/2019 by 1800$ in transit.
3- the home office shipped the goods for the branch at markup %10.
4- goods in transit for branch at cost was $5000.
5- ending inventory in san company was $30,000 and 9,900 in branch
Required:
1-Prepare the entries required to reconcile the home office and investment accounts?
2- prepare adjusted trial balance for san and its branch?
3- prepare a working paper for combined financial statement for san company in 31/12/2019?
4- prepare closing entries in branch and san books?
In: Accounting
San opening a branch in other city in the country, the following is unadjusted trial balance for san and its branch for the year ended 31/12/2019
Trail balance 31/12/2019:
San branch
|
Cash |
22000 |
10175 |
|
account /rec. |
12000 |
7550 |
|
Investment in Branch |
60000 |
|
|
Inventories1/1/2019 |
23000 |
11000 |
|
Allowance for valuation |
(1000) |
|
|
Prepaid rent |
8000 |
8450 |
|
Equipment |
177000 |
32450 |
|
Ordinary shares |
(200,000) |
|
|
Retained earning1/1/2019 |
(34,000) |
|
|
Dividend |
15000 |
|
|
Account payable |
(35000) |
(2725) |
|
Home office |
(51000) |
|
|
Purchases |
190,000 |
|
|
Shipment from home office |
104500 |
|
|
Shipment to branch |
(110,000) |
|
|
Sales |
(169000) |
(144700) |
|
Operating expenses |
42000 |
24300 |
|
total |
0000 |
0000 |
The following information are available for you not considered in the trial balance:
1- the branch sent 1700$ cash for the home office in 31/12/2019.
2- the home office replenished the branch petty cash in 31/12/2019 by 1800$ in transit.
3- the home office shipped the goods for the branch at markup %10.
4- goods in transit for branch at cost was $5000.
5- ending inventory in san company was $30,000 and 9,900 in branch
Required:
1-Prepare the entries required to reconcile the home office and investment accounts?
2- prepare adjusted trial balance for san and its branch?
3- prepare a working paper for combined financial statement for san company in 31/12/2019?
4- prepare closing entries in branch and san books?
In: Accounting
Richard, Barry and Andrew decided to enter into a partnership agreement as from 1st July 2018, some of the provisions of which were as follows.
1. Richard to contribute $24000 cash, inventory the fair value of which was $51000, plant and machinery $94320, accounts receivable totalling $15240
2. Barry to contribute $45000 cash and act as manager for the business at an annual salary of $38400 to be allocated to him at the end of each year.
3. Andrew to contribute $19800 cash, land $144000, premises $288000, furniture and fittings $48600, and motor vehicles $37800. A mortgage of $216000 secured over the premises was outstanding and the partnership agreed to assume the mortgage.
4. Profits or losses of the firm to be divided between or borne by Richard, barry and Andrew in the proportion of 2:1:3 respectively.
5. Interest to be allowed at 8% p.a. on the capital contribution by the partners. Interest at 10% p.a. to be charged on partners’ drawings.
6. During the year ended 30 June 2019, the income of the partnership totaled $144960, and the expenses (excluding interest on capital and drawings and Barry’s salary) amounted to $51600.
7. Richard withdrew $14400 on 1 October 2018 and $9600 on 1 January 2019; Barrie withdrew $4800 only on 1 April 2019; Andrew withdrew $12000 on 30 June 2019.
Required
A) Prepare general journal entries necessary to open the records of the partnership.
B) Prepare the balance sheet of the partnership immediately after formation.
C) Prepare a Profit Distribution account for the year ended 30 June 2019.
In: Accounting
Richard, Barry and Andrew decided to enter into a partnership agreement as from 1st July 2018, some of the provisions of which were as follows.
1. Richard to contribute $24000 cash, inventory the fair value of which was $51000, plant and machinery $94320, accounts receivable totalling $15240
2. Barry to contribute $45000 cash and act as manager for the business at an annual salary of $38400 to be allocated to him at the end of each year.
3. Andrew to contribute $19800 cash, land $144000, premises $288000, furniture and fittings $48600, and motor vehicles $37800. A mortgage of $216000 secured over the premises was outstanding and the partnership agreed to assume the mortgage.
4. Profits or losses of the firm to be divided between or borne by Richard, barry and Andrew in the proportion of 2:1:3 respectively.
5. Interest to be allowed at 8% p.a. on the capital contribution by the partners. Interest at 10% p.a. to be charged on partners’ drawings.
6. During the year ended 30 June 2019, the income of the partnership totaled $144960, and the expenses (excluding interest on capital and drawings and Barry’s salary) amounted to $51600.
7. Richard withdrew $14400 on 1 October 2018 and $9600 on 1 January 2019; Barrie withdrew $4800 only on 1 April 2019; Andrew withdrew $12000 on 30 June 2019.
Required
A) Prepare general journal entries necessary to open the records of the partnership.
B) Prepare the balance sheet of the partnership immediately after formation.
C) Prepare a Profit Distribution account for the year ended 30 June 2019.
PLEASE DO NOT COPY OTHERS ANSWERS
In: Accounting
In a survey of 848 human resource professionals concerning challenges they faced in the workplace, 319
said that employee retention/turnover was an important challenge and 195 said that employee satisfaction was an important challenge. Complete parts (a) through (c) below.
a. Construct a 95% confidence interval estimate of the population proportion of human resource professionals who believe that employee retention/turnover was an important challenge.
The 95% confidence interval estimate for the population proportion is
_< π<_
(Round to four decimal places as needed.)
b. Construct a 95% confidence interval estimate of the population proportion of human resource professionals who believe that employee satisfaction was an important challenge.
The 95% confidence interval estimate for the population proportion is
_≤π≤_
(Round to four decimal places as needed.)
c. How would a human resource professional use the results of (a) and (b)?
The proportion of survey respondents that said employee retention/turnover was an important challenge was
▼ Options
equal to
greater than
less than
the proportion of survey respondents that said employee satisfaction was an important challenge, and the two confidence intervals
▼Options
overlap,
do not overlap,
so a human resource professional
▼Options
would want to prioritize turnover/retention
could reasonably pioritize either issue
would want to prioritize satisfaction
Would want to prioritize satisfaction
In: Statistics and Probability