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- Here is a use objective for a chemical analysis to be performed at a drinking water purification plant: “Data and results collected quarterly shall be used to determine whether the concentrations of haloacetates in the treated water demonstrate compliance with the levels set by the Stage 1 Disinfection By-products Rule using Method 552.2” (a specification that sets precision, accuracy, and other requirements). Which one of the following questions best summarizes the meaning of the use objective?(i) Are haloacetate concentrations known within specified precision and accuracy?(ii) Are any haloacetates detectable in the water?(iii) Do any haloacetate concentrations exceed the regulatory limit?1. a) In Ghana, it has been noticed that adulteration of palm oil with carcinogenic dyes are on the rise. Use your knowledge in analytical processes to systematically outline a protocol you will follow to process adulterated palm oil to gain qualitative and quantitative information spectroscopically about any added toxic dye. Explain also the basis for your protocol of choice. b) Many rivers in Ghana are affected by illegal small-scale mining. Studies have revealed extremely high deposits of heavy metals and particulate matter in rivers, making them unwholesome for drinking. With your knowledge on analytical separation and analyses, outline a suitable analytical separation protocol that can be employed to recover polluted river bodies and make them wholesome for drinking.c) Describe how you would prepare the following solutions: i. 1L of 0.10 M NaOH using sodium hydroxide pellets. ii. 1L of 150.0 ppm Cu2+ using Cu metal. iii. 1L of 4% v/v acetic acid using glacial acetic acid.1. a) In Ghana, it has been noticed that adulteration of palm oil with carcinogenic dyes are on the rise. Use your knowledge in analytical processes to systematically outline a protocol you will follow to process adulterated palm oil to gain qualitative and quantitative information spectroscopically about any added toxic dye. Explain also the basis for your protocol of choice. b) Many rivers in Ghana are affected by illegal small-scale mining. Studies have revealed extremely high deposits of heavy metals and particulate matter in rivers, making them unwholesome for drinking. With your knowledge on analytical separation and analyses, outline a suitable analytical separation protocol that can be employed to recover polluted river bodies and make them wholesome for drinking.
- Ammonia is burned to form nitric oxide and water: 4 NH3 + 502 4NO + 6H20 The fractional conversion of oxygen is 0.5. The inlet molar flow rate is 5 mol/h of NH3 and 5 mol/h of oxygen. Calculate the exit component molar flow rates using the three methods: a. Extent of reaction method b. Atomic balance approach c. Molecular species balance approachThe student then determined ΔH neutralization for the reaction of sodium hydroxide and acetic acid, using the procedure described in this module. The student added 100.0 mL of 0.8500M NaOH to 100.0 mL of 0.8404M acetic acid. Prior to and following the mixing of the acid and base solutions, the following temperature-time data were collected. g) Identify the limiting reagent and briefly explain why it is limiting. h) Find ΔH neutralization for the reaction.What is the actual or real-life application of precipitation gravimetric analysis? Include the specific methodology.
- 2 what is the purpose of BSC Level 1 & 2, proper layout, performance, and its application in biosafety assessmentUse E5C.1(a) to Plot the data in excel. Place two data sets on the same graph: one for temp vs. x and one for temp vs y (remember, x and y are the mole fractions and they belong on the x-axis). Don’t forget to include the boiling points of the pure substances – they are data, too. Add a trendline (polynomial, 3rd order should work) to each of the coexistence lines separately. Scale the plot appropriately and use the graph to answer the questions. Then complete E5C.1(b)Suppose the concentration of a solute decays linearly along the length of a container according to c(x) = c0 - αc0x, where c0 is the concentration at x = 0. Calculate the thermodynamic force on the solute at 25 °C and at x = 10 cm and 20 cm given that the concentration falls to 1/2c0 when x = 10 cm. Hint: Start by finding the value of α.
- At 0°C and 1 bar, a monolayer of CO adsorbed on 1 g of Fe/Al2O3 catalyst occupies a volume of 4.25 cm3. What is the area of the catalyst? The area per adsorbed particle is 0.165 nm2. Give your answer in m2.What is the difference between a diffusion reaction and a diffusion-controlled reaction?Calculate the solubility of lead(II) sulfate (Ksp = 2.53x10-8) in a 0.0034 M solution of sodium sulfate. Give your answer to three sig. figs. and in exponential form (e. g. 1.23E-3).