Reference no: EM131191273
INSTRUCTIONS
This assignment form part of assessment for these module . the question carries 50 marks and the pass mark is 30 marks .
You only have one chance to sit for these exams and if you fail to reach the pass mark ,you will apply to re-sit for a supplementary on these in which you will only be eligible for a pass grade .
You are at liberty to refer to any literature as long as you do not plagiarize. You are also allowed to seek your tutors advice if unsure . But do not plagiarize
Answer all questions and show your working (where appropriate ) on these paper and submit it through our official email account.
Your tutors comments on the assignment will be communicated through the same channel.
QUESTION
Question 1.
25cm3 of Potassium hydroxide KOH was pipetted and transferred into a conical flask , it was titrated against 0.02M of HCL. On titration , the following volumes of the acid was used in three titration : 22.5cm3 ,24.2cm3, and 23.5 cm3.
Determine the concentration (in moles per liter ) of salt and hence the percentage of the salt in the mixture
Question 2: You are provided with;
(i) Solution A which is a mixture of a salt; XCL (RFM 54. 5g) and an alkali ; XOH(RFM 56g).8.4g of the mixture were made up to one liter of aqueous solution .
(ii) Solution B which is a 0.1M solution of a monobasic acid;HA.
You are required to determine the concentration (in moles per liter ) of salt and hence the percentage of the salt in the mixture
|
Describe the preparation of iodine for use in food test
: QUESTION, Describe the preparation of iodine for use in food test, A positive iodine test, Describe the tests for carbohydrates
|
|
Microscopy
: Outline the procedure for calibration of a light microscope, The procedure of focusing in light microscope, Explain four factors ways of obtaining maximum amount of resolution in bright field microscope
|
|
Calculate the quantity of electricity q
: Calculate the quantity of electricity Q, Calculate the moles of copper and silver deposited, Calculate the amount of copper and silver that will be deposited by 96500 coulombs of electricity
|
|
Calculate the ph of a solution containing
: Calculate the pH of a solution containing 020M CH3COOH and 0.30M CH3COONa, (b) What would be the pH of 0.20M CH3COOH solution be if CH3COONa were not present
|
|
Volumetric analysis
: 25cm3 of Potassium hydroxide KOH was pipetted and transferred into a conical flask , it was titrated against 0.02M of HCL. On titration , the following volumes of the acid was used in three titration : 22.5cm3 ,24.2cm3, and 23.5 cm3. Determine the co..
|
|
Compute the eps for each plan
: Compute the EPS for each plan. (Do not round intermediate calculations. Round your answers to 2 decimal places (e.g., 32.16).)
|
|
Calculate the aftertax cash flows
: Calculate the aftertax cash flows for the first year for each bond. (Do not round intermediate calculations and enter your answers in dollars, not millions of dollars,
|
|
How long will you be able to stay in school based funds?
: Funds available for graduate school $ b. You plan to work on a master's and perhaps a PhD. If graduate school costs $26,660 per year, approximately how long will you be able to stay in school based on these funds?
|
|
What is the npv of projects x and y at discount rates of
: What is the NPV of Projects X and Y at discount rates of 0%, 15%, and 25%? (Negative amount should be indicated by a minus sign. Do not round intermediate calculations and round your answers to 2 decimal places, e.g., 32.16.)
|