Which is NOT true for solute retention- A) Retention time- tr- is the.docx

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Which is NOT true for solute retention? A) Retention time, t r, is the elapsed time between injecting the sample to the arrival of a sample component at the detector minus the dwell time between the end of the column and the detector. B) Adjusted retention time is t râ€™ = t r â€“ t m, where t r is the retention time and t m is the time for mobile phase or unretained solutes to pass through the column. C) The relative retention, ? = r 2 , is the ratio for the adjusted retention time for two t \' r1 components of the sample, where t r2â€™ > t r1â€™ so that ? > 1. D) The retention factor, k = t r ? t m , is the time, tr, required to elute a component t m K 1coefficients for components 2 and 1.minus the time, tm, for mobile phase to pass through the column divided by t m . E) The relative retention, ?, also equals K 2 , where K 2 and K 1 are the partition coefficients for components 2 and 1. Solution (A) is the answer. Reason: The absolute time taken by a compound to travel from the injector through the column to the detector is the retention time. Dwell time will not come into the definition. Rest all options are correct .

Which is NOT true for solute retention?
A) Retention time, t r, is the elapsed time between injecting the sample to the arrival of a sample
component at the detector minus the dwell time between the end of the column and the detector.
B) Adjusted retention time is t râ€™ = t r â€“ t m, where t r is the retention time and t m is the
time for mobile phase or unretained solutes to pass through the column.
C) The relative retention, ? = r 2 , is the ratio for the adjusted retention time for two t ' r1
components of the sample, where t r2â€™ > t r1â€™ so that ? > 1.
D) The retention factor, k = t r ? t m , is the time, tr, required to elute a component
t m
K 1coefficients for components 2 and 1.minus the time, tm, for mobile phase to pass through the
column divided by t m .
E) The relative retention, ?, also equals K 2 , where K 2 and K 1 are the partition coefficients for
components 2 and 1.
Solution
(A) is the answer.
Reason: The absolute time taken by a compound to travel from the injector through the column
to the detector is the retention time.
Dwell time will not come into the definition.
Rest all options are correct

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1. How are budgets used for a company or in government? What would your suggestions be to balance our economic budget? 2. After identifying suggestions for balancing the economic budget explain the importance of being able to identify various \"variances\" that may be identified? You may use any examples you want. Solution 1. How are budgets used for a company or in government? What would your suggestions be to balance our economic budget? Ans. A government budget is a government document presenting the government\'s proposed revenues and spending for a financial year that is often passed by the legislature, approved by the chief executive or president and presented by the Finance Minister to the nation. The budget is also known as the Annual Financial Statement of the country. This document estimates the anticipated government revenues and government expenditures for the ensuing (current) financial year. [1] For example, only certain types of revenue may be imposed and collected. Property tax is frequently the basis for municipal and county revenues, while sales tax and/or income tax are the basis for state revenues, and income tax and corporate tax are the basis for national revenues. The two basic elements of any budget are the revenues and expenses. In the case of the government, revenues are derived primarily from taxes. Government expenses include spending on current goods and services, which economists call government consumption; government investment expenditures such as infrastructure investment or research expenditure; and transfer payments like unemployment or retirement benefits. A status of financial health in which expenditures exceed revenue. The term \"budget deficit\" is most commonly used to refer to government spending rather than business or individual spending. When referring to accrued federal government deficits, the term \"national debt .

1- How are budgets used for a company or in government- What would you.docx

1- How are budgets used for a company or in government- What would you.docx

1- How are budgets used for a company or in government- What would you.docx

1. How are temperature and heat different concepts? 2. How does the specific heat of water compare to the specific heat of other common materials? Why is this important? Solution 1. There is a fundamental difference between temperature and heat. Heat is the amount of energy in a system. The SI units for heat are Joules. A Joule is a Newton times a meter. A Newton is a kilogram-meter per second squared. Heat is transferred through radiation, conduction and convection. The amount that molecules are vibrating, rotating or moving is a direct function of the heat content. Energy is transported by conduction as molecules vibrate, rotate and/or collide into each other. Heat is moved along similar to dominos knocking down their neighbors in a chain reaction. An increase of electromagnetic radiation into a system causes the molecules to vibrate, rotate and/or move faster. With convection, higher energy molecules are mixed with lower energy molecules. When higher energy molecules are mixed with lower energy molecules the molecular motion will come into equilibrium over time. The faster moving molecules will slow down and the slow moving molecules will speed up. Temperature is the MEASURE of the AVERAGE molecular motions in a system and simply has units of (degrees F, degrees C, or K). Notice that one primary difference between heat and temperature is that heat has units of Joules and temperature has units of (degrees F, degrees C, or K). Another primary difference is that energy can be transported without the temperature of a substance changing (e.g. latent heat, ice water remains at the freezing point even as energy is brought into the ice water to melt more ice). But, as a general statement (ignoring latent heat), as heat energy increases, the temperature will increase. If molecules increase in vibration, rotation or forward motion and pass that energy to neighboring molecules, the measured temperature of the system will increase. 2. Water has one of the highest specific heat capacities known. There are however a few substances whose specific heat capacity is higher A large body of water can absorb and store a huge amount of heat from the sun in the daytime and during summer while warming up only a few degrees. And at night and during winter, the gradually cooling water can warm the air. This is the reason coastal areas generally have milder climates than inland rtegions. The high specific heat of water also tends to stabilize ocean temperatures, creating a favorable environment for marine life. THus because of its high specific heat, the water that covers most of Earth keeps temperature fluctuations on land and in water within limits that permit life. Also, because organisms are primarily made of water, they are more able to resist changes in their own temperature than if they were made of a liquid with a lower specific heat. .

1- How are temperature and heat different concepts- 2- How does the sp.docx

1- How are temperature and heat different concepts- 2- How does the sp.docx

1- How are temperature and heat different concepts- 2- How does the sp.docx

1. According to the career opportunities on their websites, what are some of the things that all three firms (Volkswagen, Volvo, and Ford) offer to motivate new employees? Which of the three has the best motivational package? Solution Volkswagen Working at Volkswagen offers employees a robust portfolio of personal and professional development opportunities in addition to a great benefits package. As well as the opportunity to craft a unique and diverse career path, working at Volkswagen offers employees a robust portfolio of personal and professional development opportunities in addition to a great benefits package. In their effort to become a true employer of choice, we also look to provide a working environment that considers the unique operating requirements of individuals as well as the evolving landscape of the modern workforce. We are pleased to offer the Volkswagen Modern Apprenticeship Programme in conjunction with our training partner Vantage Automotive. This programme has been designed to equip apprentices with the relevant skills and knowledge to become fully qualified Volkswagen Service Technicians. Volvo Volvo offers Internships to their employees. It supports career development through activities ranging from training to individual coaching and mentoring. Volvo promoted self-managed learning and on the job training, based on challenging work assignments, opportunities for cross-functional projects, job rotation and international experience. This also includes the possibility of choosing between the specialist, the project manager and the leader career paths. Volvo provides opportunity to apply for both short-term and long-term assignments in a company or branch of operations abroad. Long-term opportunities with the Group include Leadership, Project Management and Specialist careers. Each path has a structure that consists of several levels, all linked to specific competences and development tools, activities and programs. They offer a structured way of developing and preparing employees for current and future roles. Ford Ford Motor Company is an equal opportunity employer committed to a culturally diverse workforce. All qualified applicants receive consideration for employment without regard to race, religion, color, age, sex, national origin, sexual orientation, gender identity, disability status or protected veteran status. Ford Motor Company is committed to take affirmative action to employ and advance in employment of such persons. opportunity to apply for both short-term and long-term assignments in a company or branch of operations abroad. Volkwagen has the best package as they develop their employees to be qualified technicians. .

1- According to the career opportunities on their websites- what are s.docx

1- According to the career opportunities on their websites- what are s.docx

1- According to the career opportunities on their websites- what are s.docx

Which is the stronger acid in the following pair? Explain your reasoning. Be sure to answer all parts. p? Methoxyphenol o? Methoxyphenol The stronger acidity is due to (select all that apply): electron-donating inductive effects intra-molecular hydrogen bonding electron-withdrawing inductive effects conjugation with the substituent Solution 1. Ortho-methoxy phenol is more acidic than para Methoxy phenol. Since OMe is -I group and it stabilizes the phenoxide ion. As we know that strength of Inductive effect decreases with the increase of distance. Hence in para isomer, withdrawing effect of OMe is less compared to ortho isomer. 2. Options B, C and D are correct Intramolecular hydrogen bond: increase the acidity. Ex: ortho Nitro phenol is more acidic than para Nitro phenol, Hydrogen bonding stabilize the anion after proton loosing. -I groups (NO2, CHO, CN etc) increases the acidity Conjugation of group also increases the acidity by resonance Ex: phenol is more acidic than methanol since phenoxide is stabilized by resonance which is not possible to methoxide. .

Which is the stronger acid in the following pair- Explain your reasoni.docx

Which is the stronger acid in the following pair- Explain your reasoni.docx

Which is the stronger acid in the following pair- Explain your reasoni.docx

Which form type displays records in a tabular format similar to a Datasheet view but has more editing options, such as adding graphics? Datasheet Form Multiple Items Form Split Form Subform Which database property type increases the efficiency of a search on the designated field in the physical database? Validation rule Validation text Indexed Expression Which of the following describes a poor design consideration for a form? Arrange controls closely together or in a sequence that is easy to read by the user. Each form should have a different theme. Make labels descriptive and clear. Right-align labels followed by a colon and left-align bound controls. After running a query, which view will be shown? Datasheet Design Query Result A deletion anomaly is deleting facts about one entity successfully. deleting a table. deleting facts about one entity and deleting facts about another entity. deleting only one fact from a column. Solution 1) DataSheet Form It is a data entry form where we can display query result into tables. 2)Indexed Normally all data stored in database is indexed so that searching by integer index value is faster than searching whole data fields. Normally this search known as indexed search. 3)Right-align labels followed by a colon and left-align bound controls. 4) After running a query, the result shown in daraSheet view. 5)deleting facts about one entity successfully .

Which form type displays records in a tabular format similar to a Data.docx

Which form type displays records in a tabular format similar to a Data.docx

Which form type displays records in a tabular format similar to a Data.docx

which equation best represents the net ionic reaction that occurs when an aqueous solution of barium iodide is mixed with an aqueous solution of lithium sulfate? No net reaction occurs Ba^2+(aq)+SO4^2-(aq)-> BaSO4(s) BaI2(aq)+Li2SO4(aq)-> BaSO4(s)+2LiI(aq) 2H^+(aq)+2I^-(aq)->2HI(g) Ba^2+(aq)+2I^-(aq)+2Li^+(aq)+SO4^2-(aq)-->BaSO4(s)+2LiI(aq) which equation best represents the net ionic reaction that occurs when an aqueous solution of barium iodide is mixed with an aqueous solution of lithium sulfate? No net reaction occurs Ba^2+(aq)+SO4^2-(aq)-> BaSO4(s) BaI2(aq)+Li2SO4(aq)-> BaSO4(s)+2LiI(aq) 2H^+(aq)+2I^-(aq)->2HI(g) Ba^2+(aq)+2I^-(aq)+2Li^+(aq)+SO4^2-(aq)-->BaSO4(s)+2LiI(aq) No net reaction occurs Ba^2+(aq)+SO4^2-(aq)-> BaSO4(s) BaI2(aq)+Li2SO4(aq)-> BaSO4(s)+2LiI(aq) 2H^+(aq)+2I^-(aq)->2HI(g) Ba^2+(aq)+2I^-(aq)+2Li^+(aq)+SO4^2-(aq)-->BaSO4(s)+2LiI(aq) Solution Ans Reaction between aqueous solution of barium iodide and lithium sulfate BaI 2 (aq) + Li 2 SO 4 (aq) -> BaSO 4 (s) + 2LiI(aq) From above reaction it is clear that formation of barium sulfate is solid i.e. in pure form so not participate in net ionic reaction So net ionic reaction is 2LiI(aq) -> 2 Li + (aq) + 2Cl - (aq) So last equation best to represent the net ionic reaction Ba 2+ (aq) + 2I - (aq) + 2Li + (aq) + SO 4 2- (aq) --> BaSO 4 (s) + 2LiI(aq) .

which equation best represents the net ionic reaction that occurs when.docx

which equation best represents the net ionic reaction that occurs when.docx

which equation best represents the net ionic reaction that occurs when.docx

Which complex in the electron transport chain does not contribute to the proton gradient? Why not? Solution Ans - An electron transport chain ( ETC ) is a series of complexes that transfer electrons from electron donors to electron acceptors via redox (both reduction and oxidation occurring simultaneously) reactions, and couples this electron transfer with the transfer of protons (H + ions) across a membrane. This creates an electrochemical proton gradient that drives the synthesis of adenosine triphosphate (ATP), a molecule that stores energy chemically in the form of highly strained bonds. The molecules of the chain include peptides, enzymes (which are proteins or protein complexes), and others. The final acceptor of electrons in the electron transport chain during aerobic respiration is molecular oxygen although a variety of acceptors other than oxygen such as sulfate exist in anaerobic respiration. The four complexes involved in electron transport chain are Complex II does not contribute to proton gradient in electron transport chain. This complex oxidizes succinate, which is produced in TCA cycle, and transfers electrons to ubiquinone. This complex is not associated with any proton gradient. .

Which complex in the electron transport chain does not contribute to t.docx

Which complex in the electron transport chain does not contribute to t.docx

Which complex in the electron transport chain does not contribute to t.docx

where heat is transfer high in conduction or convection where heat is transfer high in conduction or convection Solution CONDUCTION-- Conduction is the transfer of heat between substances that are in direct contact with each other. The better the conductor, the more rapidly heat will be transferred. Metal is a good conduction of heat. Conduction occurs when a substance is heated, particles will gain more energy, and vibrate more. These molecules then bump into nearby particles and transfer some of their energy to them. This then continues and passes the energy from the hot end down to the colder end of the substance. CONVECTION-- Thermal energy is transferred from hot places to cold places by convection. Convection occurs when warmer areas of a liquid or gas rise to cooler areas in the liquid or gas. Cooler liquid or gas then takes the place of the warmer areas which have risen higher. This results in a continous circulation pattern. Water boiling in a pan is a good example of these convection currents. Another good example of convection is in the atmosphere. The earth\'s surface is warmed by the sun, the warm air rises and cool air moves in. Hence more heat is transferred by CONDUCTION because of the direct contact. .

where heat is transfer high in conduction or convection where heat i.docx

where heat is transfer high in conduction or convection where heat i.docx

where heat is transfer high in conduction or convection where heat i.docx

Where do most college students exist on Maslow\'s hierarchy of needs? Be descriptive in your explanation of why... Please be orginial no articles or cut and paste what are your real thoughts! Thanks !! Solution I think that most college students exist between the Love and Belong and Esteem parts of the hierarchy on the pyramid. Many College students have achieved a sense of love and belonging through relationships wthi their friends and family.Â Â Students have made social connections by being members of sports teams, clubs, fraternities, sororities and other types of activities that help to achieve this pyramid level. At the same time, the need for belonging may become overcome other needs depending on the level of peer pressure. Also, college students have a need to feel respected and values by others. This spills into the Esteem layer of Maslow\'s hierarchy pyramid. Students will participate in a hobby, team or other organization to gain recognition of others. By doing this, students achieve a sense of value and acceptance from others. In some cases, there will be a need to achieve popularity or fame but this will not assist in achieving actual happiness as the sense of value and acceptance must really come from within the student .

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When the sender and the recipient can transmit data to each other over an unsecured or monitored link by encrypting messages without worrying that their communications are being monitored, it is called: authentication confidentiality integrity nonrepudiation Solution option B confidentiality is correct option. Confidentiality : By encryptin messages, the sender and the recipient can transmit data to each other over an unsecured or monitored link without worrying that their communucations are monitored. Inyegrity : The communication parties can also be sure that their data has not been modified while in transit. This is achieved by the hashing function. Authentication : Because the message uses the private key that only the owners know and have access to, the recipient of the message knows for a fact that it was sent by the person after the message was decrypted by sender\'s public key. Nonrepudiation : The sender cannot claim that the message did not originate from his or her computer or that the contents of the message were changed in transit. You cannot denied this message is not from your computer. .

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1. Which is NOT true for solute retention? A) Retention time, t r, is the elapsed time between injecting the sample to the arrival of a sample component at the detector minus the dwell time between the end of the column and the detector. B) Adjusted retention time is t râ€™ = t r â€“ t m, where t r is the retention time and t m is the time for mobile phase or unretained solutes to pass through the column. C) The relative retention, ? = r 2 , is the ratio for the adjusted retention time for two t ' r1 components of the sample, where t r2â€™ > t r1â€™ so that ? > 1. D) The retention factor, k = t r ? t m , is the time, tr, required to elute a component t m K 1coefficients for components 2 and 1.minus the time, tm, for mobile phase to pass through the column divided by t m . E) The relative retention, ?, also equals K 2 , where K 2 and K 1 are the partition coefficients for components 2 and 1. Solution (A) is the answer. Reason: The absolute time taken by a compound to travel from the injector through the column to the detector is the retention time. Dwell time will not come into the definition. Rest all options are correct