Below the questions have been answered.
(4 marks) 8. With reference to the principles underlying their operation, briefly explain why the following...
Please answer it ALL completely and write clearly, thank you. ( 10 marks, pls write briefly thank you) ( 10 marks, PLS write briefly, Thank you) High performance liquid chromatography (HPLC) deals with liquid samples at high pressures whereas mass spectrometer (MS) operates at normal temperatures and requires high vacuum conditions. Describe in detail hovw these very conflicting conditions are taken care of in the process of combining the two techniques resulting in a hybrid technique known as HPLC-MS. Use...
please answer both questions typed not hand writing. (6) 8. Which of the following is generally not used as the basis of a detector for high performance liquid chromatography? HPLC (a ) uv-visible (b) refractive index (c) Thermal conductivity (d) electrochemical (e) fluorescence (9) 9. Explain the differences in the techniques and the advantages of split, splitless, and on- column injections in GC.
4. explain why "job costing" techniques are useful in decision making. (8 marks)
for cache? If yes, explain why. If no, explain why not. Question 20 (8 marks) Research conducted at Charles Darwin University shows that it is possible to diagnose some problems with peoples hearing by playing sounds to them through headphones and recording electrical signal generated in the brain as a response to these sounds. To get effective information, the sound must be played to the person many times, sometimes in phase, sometimes out of phase, and the signals processed after...
(a) Explai in, using reference to appropriate gas laws why it is possible to treat water and air at atmospheric pressures and temperatures as a mixture of perfect gases. (6 marks) ( Explain the difference between the terms relative humidity and specific (6 marks) (c) An air conditioning unit is to supply air at 20°C, 1 bar, and relative humidity as means of quantifying the amount of water in air humidity 50% to a lecture theatre. Ambient conditions are 30°C,...
Table 2: Alcohol and Ketone Standards GC Retention Times GC#: Retention time Alcohol Standard Mixture Phent ion= 2.05Smin low Peak 1 Compound Name: athanol Rapesnal utanal aclapeatanal 4.755min oilng 6.895min .230 min Peak 2 Compound Name: Peak 3 Compound Name: Peak 4 Compound Name: GC#:1 Ketone Standard Mixture Retention time 2.575un Peak 1 Compound Name: Acclono Butanon a Pentanone 2tHex anon Peak 2 Compound Name: min Peak 3 Compound Name: 615 min 1D. 307 min Peak 4 Compound Name: Part...
2. (a) Briefly describe the compiler-based register optimization technique (typically (4 marks) (b) Describe the delayed branch technique and explain why it is more common in (4 marks) tetch, indirect and moon used for RISC machines). (c) Show the pipeline activity for the following code fragment with and without applying the delayed branch technique. Assume that there are three pipeline stages (fetch-decode, address calculation, data movement) for load and store RISC machines than in superscalar processors. instructions and two stages...
QUESTION 8 a) Explain the fundamental qualitative characteristics of accounting information. (5 Marks) b) Explain the enhancing qualitative characteristics of accounting information. (5 Marks) c) Financial statements are the summary of the financial results of the operation of a business for a specified period of time and the financial position as at that date. What are the components of financial statements? (2.5 marks) d) Financial statements are prepared to meet the demands and aspirations of certain group of people Mention...
NEED HELP WITH B) C) D) E) F) and G) that apply to the spectra below. OTHER ANSWERS ARE THERE TO SUPPLEMENT Thank you! 5. Using the GC mentioned in question 4 and the values listed on the chromatogram for the height and width (at half height) of each peak, calculate the percent composition for each product (A, B and C). Be sure to show your work. Area of peak A = 125 x 8 = 1000mm2 Area of peak...
Question 1( 8 marks) The following cover various ethical situations .For each you need to state whether there has been a violation or no violation of a general ethical principle and if there is a violation which ethical principle is violated.You need to also to briefly outline the reason for your answer in each situation . ( a) The Berowra Accountants are advertising a special in the local paper that they guarantee to provide their clients with a tax refund...