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what is 3 ocular units, 4.2 ocular units, 5 ocular unit, 3.6 ocular units, and 8 ocular units into micrometers with step by step
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- Which of the following scientists use this X-ray crystallography?A student carries out the following experiments and records the following observations. 1. A few drops of a solution of KOH (aq) is added to a solution of Fe(NO3)3 (aq). A red gelatinous solid forms immediately upon addition. 2. A few drops of a solution of KOH (aq) is added to a solution of NaNO3 (aq). No changes are observed. 3. A few drops of a solution of KOH (aq) is added to a solution that could contain Fe3+(aq) and/or Na+(aq) ions (the solution could contain both ions, just one ion, or neither ions). A red gelatinous solid forms immediately upon addition. Select all of the answers that are consistent with the data from those 3 experiments. Group of answer choices The unknown contains Fe3+(aq) and Na+(aq) The unknown contains Fe3+(aq) It is not possible to determine the presence of Na+(aq) from this experiment The unknown contains neither Fe3+(aq) or Na+(aq)You have a 1000X stock solution of sodium chloride (NaCl). The concentration of NaCl in the stock solution is 5M. a)How would you make 300mL of a 1X solution? b)What is the concentration of NaCl in your 1X solution?
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- If the agar instructions say to mix 50 grams of agar in 1 liter of water, how many grams of agar would you mix into 100 milliliters of water to get the proper concentration of agar?High-density polyethylene (HDPE) is opaque while low-density polyethylene (LDPE) is transparent. Which of PE’s two forms has the higher Tm? Justify your answer.When deoxyhemoglobin was first isolated in crystalline form, the researcher who did so noted that the crystals changed color from purple to red and also changed shape as he observed them under a microscope. What is happening on the molecular level? Hint: The crystals were mounted on a microscope slide with a loosely fitting cover slip.
- A mixture of lipids containing phosphatidic acid, cholesterol, testosterone, and phosphatidylcholine was applied to a hydrophobic interaction chromatography column. The column was then washed with increasingly nonpolar solvents. IWhat order would the lipids be eluted from the column?(b) Table Q1 below provides optical measurements of samples with known concentrations of analyte (ten samples were measured and the average and standard deviation are presented). They are also represented graphically in Figure Q1, below the table. Analyte concentration (nM) 0.1 0.2 0.5 1 2 5 10 15 fluorescence intensity 300000 250000 200000 150000 100000 50000 0 0 Table Q1 Fluorescence intensity (average) 9300 9200 10800 19600 37200 90000 178000 224000 5 [Analyte]/nM 10 Standard deviation 2000 1200 1000 2000 10000 30000 25000 40000 15 Figure Q1. Signal intensity for different analyte concentrations. Error bars are standard deviation. (ii) Calculate the limit of detection (LOD) for this sensor. (iii) A patient sample measured using this biosensor in the diagnostic laboratory generates a signal of 142800. The coefficient of variation of the device is 5%. Explain whether the diagnostic lab would have the confidence to report that the sample has a concentration in analyte of 8 nM or…Given the following absorbance spectrum, to what wavelength should you set the spectrophotometer to measure your samples? Absorbance 400 500 600 Wavelength (nm) 700