The Orthorhombic Unit Cell Of NiSO4 Has The Dimensions A = 6.34 Å, B

The orthorhombic unit cell of NiSO4 has the dimensions a = 6.34 Å, b = 7.84 Å, and c = 5.16 Å, and the density of the solid is estimated at 3.9 g.cm-3. Determine the number of formula units per unit cell and calculate a more precise value of the density

The Basic Concepts Of Spectrophotometry 1. Components Of Spectrophotometer 2. Purpose Of A Calibration

The basic concepts of spectrophotometry       1. Components of spectrophotometer       2. Purpose of a calibration curve       3. How the absorbance curve is constructed

The Following Drugs All Show Activity At Opiate Receptors. What Conclusions Can Be Drawn

The following drugs all show activity at opiate receptors. What conclusions can be drawn from these structures about selectivity, reversibility and agonist/antagonist activity? [You will need to do some research on opioid receptor types!]

EDTA TITRATION Construct A PFe Versus Volume Titration Curve When A 50.00 ML Of

EDTA TITRATION Construct a pFe versus volume titration curve when a 50.00 mL of 0.005000 M Fe3 solution is titrated with a 0.01000 M EDTA solution. The Fe3 solution is buffered to a pH of 10.70. The Kf for Fe3 with EDTA is equal to 1.259×1025 . (i) Calculate pFe when 0.00 ml of EDTA is added. (ii) Calculate pFe when 10.00 ml of EDTA is added. (iii) Calculate pFe when 12.50 ml of EDTA is added. (iv) Calculate pFe when 25.00 ml of EDTA is added (v) Calculate pFe when 26.00 ml of EDTA is added.

For (a), Answer Should Be 44%. For (b), Answer Should Be 89%. For (c),

For (a), answer should be 44%. For (b), answer should be 89%. For (c), answer should be Solvent B. Please explain the reasoning and show the work for these answers.

With Respect To D-d Transitions In The Visible Region Why Are Zn2 Complexes Such

With respect to d-d transitions in the visible region why are Zn2 complexes such as Zn(CN)2 white?

I Wan To Do The Analysis Of This Data Using Roger Ratio Method, A

I wan to do the analysis of this data using Roger Ratio Method, a technique use for DGA Analysis. Could you provide me with the code which can be either on MATLAB, excel or C language.

You Are Studying A Protein And Used SDS-PAGE To Estimate The Molecular Mass. On

You are studying a protein and used SDS-PAGE to estimate the molecular mass. On the first attempt, you estimated that the size of the protein was 60 kDa. On the second attempt you estimated that the size of the protein was 30 kDa. Going through your notes, you discovered that in the first attempt, you forgot to add the 5% (v/v) ß-mercapto ethanol to the sample buffer. As per prac 2, the sample buffer did contain 4% (v/v) SDS and was heated 95oC for 4 minutes. On the second attempt the sample was prepared by mixing it with a buffer containing 4% (v/v) SDS and 5% (v/v) β-mercapto ethanol and it was heated at 95oC for 4 minutes. Explain: i) Why the protein size estimate was different between the first and second SDS-PAGE attempt. ii) Include a description of the function of the ß-mercaptoethanol in the system. iii) Provide a conclusion about the structure of the studied protein.

3b. A SLE222 Student Found That In The P60 Gel Filtration Chromatography, There Were

3b. A SLE222 student found that in the P60 gel filtration chromatography, there were two absorption peaks at 400 nm, the first peak occurred in fraction 2 while the second occurred in fraction 9. They reasoned that the first was haemoglobin and that the second was vitamin B12. They concluded that gel filtration chromatography separates molecules on the basis of their mass. Haemoglobin had a molecular mass of 63 kDa while vitamin B12 had a molecular mass of 1.4 kDa. Haemoglobin was eluted first since it was heavier than vitamin B12 and thus due to gravity sunk to the bottom of the mobile phase as it moved through the column. i) Did the student draw the correct conclusion from the chromatography result? Justify your answer. Describe the elution profile of your experiment including a description of the theory behind the separation of molecules by gel filtration chromatography

• Show All Calculations • Report Your Answers To The Correct Number Of Significant

• Show all calculations • Report your answers to the correct number of significant figures

For (a), The Answer Should Be 28.3 M-1cm-1 . For (b), The Answer Should

For (a), the answer should be 28.3 M-1cm-1 . For (b), the answer should be 0.0291 M. Please explain the reasoning and show the work done to obtain these answers. (a) Using the linear regression equation provided on the graph, calculate the experimental molar absorptivity constant (ε) for copper (II) sulfate. You may assume the path length of light equal to 1.21cm. Slope = εL. Your final value should have the correct unit and number of significant figures. (b)Using the Beer’s Law absorbance limit of 1.000, what is the maximum standard concentration (in M) of copper (II) sulfate that can be used for Beer’s law analysis?

3.2 Explain In Detail Why (E)-pent-3-en-2-one Cannot Undergo McLafferty Rearrangement. (4) 3.3 Use The

3.2 Explain in detail why (E)-pent-3-en-2-one cannot undergo McLafferty rearrangement. (4) 3.3 Use the IR, MS and NMR spectra given below to provide rational interpretation to determine the structure of this compound. (10)

How Do Ionic Liquids Capture CO2 Also What Vapour Is Released When Formic Acid

How do ionic liquids capture CO2 Also what vapour is released when formic acid is added to:

The Solubility Of Silver Bromide A Is 6.0·10-7 Moles/L. How Many Grams Of Silver

The solubility of silver bromide a is 6.0·10-7 moles/L. How many grams of silver bromide will have precipitated when 0.119 g of potassium bromide have been added to 1 L of silver bromide solution? Molecular masses: Silver bromide: 187.8 g / mol. Potassium bromide: 117.8 g / mol

What Is The Sensitivity Of The Assay For BSA? (extinction Coefficient At 280nm =

What is the sensitivity of the assay for BSA? (extinction coefficient at 280nm = 40mM-1cm-1 ) consider minimum absorbance 0.1

. Give One Reason To Use Colourimetric Assay To Determine The Protein Concentration Instead

. Give one reason to use colourimetric assay to determine the protein concentration instead of abs at 280nm

List The PPE (protective Personal Equipment) Necessary For Your Assigned Assay? ( Biuret Method)

List the PPE (protective personal equipment) necessary for your assigned assay? ( Biuret method)

Calculate The Absorbance At 260 And 280nm Resulting From Protein X At 1mg/ml (E1%=

Calculate the absorbance at 260 and 280nm resulting from protein X at 1mg/ml (E1%= 5 at 280nm), DNA at 50ug/ml (conversion factor 50 μg/ml gives abs 1.0 at 260nm) and the mixture of Protein/DNA at the concentrations (protein X at 50 μg/ml and DNA 50ug/ml). (Ratios A260/A280 for proteins =0.5 and for DNA =2)Can you measure protein concentration at 280nm even when your sample has been contaminated with considerable amount of nucleic acids? Why?

Question A Patient Was Presented With Suspected Salicylic Acid (SA) Overdose. The Initial Plasma

Question A patient was presented with suspected salicylic acid (SA) overdose. The initial plasma concentration of SA was 2000 mg/L and 1 hour later it is 1000 mg/L. a) What is the half-life of SA in this patient? (2) b) Calculate the elimination constant of SA in this patient. (4) c) Calculate how many hours will be needed for the SA to reach a level of 62.5 mg/L if the kel = 0.693 in this patient. (answer 5 hours) (4) You may find the following equations useful: LogCt = Log Co – (kel X t)/2.303; Half-life (t1/2) = 0.693/kel; Vd = dose (mg) / plasma concentration (mg/L); % Bioavailability = (AUCoral/AUCiv)x100 Vd = Dose i.v. / (AUC x kel)

(2 Marks) Draw The Following Directions Within A Cubic Unit Cell. You May Use

(2 Marks) Draw the following directions within a cubic unit cell. You may use more than one cell to show the directions, but ensure you label all vectors.

The Compound Rb3TlF6 Has A Tetragonal Unit Cell With Dimensions A = 6.51 Å

The compound Rb3TlF6 has a tetragonal unit cell with dimensions a = 6.51 Å and c = 9.34 Å. Calculate the volume of the unit cell

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