Using the working concentration of the standard glucose solution, the following standard solutionswere prepared:Test TubeNo.12345Table 6.2. Preparation of the standard glucose solutionVolume of 2.0 mM glucosesolution(in mL)0.000.150.300.500.70Volume of dH₂O(in mL)1.000.850.700.500.30Q11. Determine the concentration of the prepared standard glucose solutions in test tubes 1-5.Tabulate your answers and express them in two decimal places. Nelson's test was first performed in standard glucose solutions to generate a linear equation todetermine the concentration of D-glucose hydrolyzed from the glycogen isolate. The linear equation isconstructed by plotting the concentration of standard glucose (in mM) on the x-axis against theabsorbance of the resulting mixture at 510 nm on the y-axis. As such, the general form of the linearequation is:Abs =slope (in mM-1) [glucose] (in mM) + y - intercept

The molarity (M) of a solution is the number of moles of solute dissolved in one litre of solution.…

Using the working concentration of the standard glucose solution, the following standard solutions were prepared: Test Tube No. 1 2 W|N 3 4 45 5 Table 6.2. Preparation of the standard glucose solution Volume of 2.0 mM glucose solution (in mL) 0.00 0.15 0.30 0.50 0.70 Volume of dH₂O (in mL) 1.00 0.85 0.70 0.50 0.30 Q11. Determine the concentration of the prepared standard glucose solutions in test tubes 1-5. Tabulate your answers and express them in two decimal places.

Using the working concentration of the standard glucose solution, the following standard solutions were prepared: Test Tube No. 1 2 W|N 3 4 45 5 Table 6.2. Preparation of the standard glucose solution Volume of 2.0 mM glucose solution (in mL) 0.00 0.15 0.30 0.50 0.70 Volume of dH₂O (in mL) 1.00 0.85 0.70 0.50 0.30 Q11. Determine the concentration of the prepared standard glucose solutions in test tubes 1-5. Tabulate your answers and express them in two decimal places.

Appl Of Ms Excel In Analytical Chemistry

2nd Edition

ISBN:9781285686691

Author:Crouch

Publisher:Crouch

Chapter14: Chromatography

Section: Chapter Questions

Problem 9P

See similar textbooks

Similar questions

A chart is prepared by plotting In Ksp versus 1/T, using data obtained by performing a lab experiment. Refer to the attached photo for reference on how to solve these equations. Particularly #5 should be useful: A linear fit of the data in the chart yields the equation y = (-5.0020x10^3)x+(2.100x10^1) with an R2 value of 0.9922. Determine the enthalpy (deltaH in kJ) associated with dissolving KNO3. Answer in scientific notation with appropriate sigfigs.
There's 1 drink (and you are asked to determine the glucose concentration in the drink in the units of g/100mL. (Why these units? Well, once you have the concentrations in g/100mL you will be able to compare your values with the nutritional values given on the drink bottles’ labels). The sample of the drink was diluted 1/100 (i.e. by a factor of 100). This was an essential step in the method because, without it, the machine used to analyse the glucose concentration (spectrophotometer) would have given an error as the concentration would have been too high for accurate detection. What this means for you is that the dilution factor will need to be taken into consideration in your calculations (remember the aim is to calculate the concentration in the original drink and not in the diluted drink). You measured the concentration of their diluted drink using the spectrophotometer and their results were provided to them in the units mM (millimolar). Glucose Concentration in mM of drink =…
There's 1 drink (and you are asked to determine the glucose concentration in the drink in the units of g/100mL. (Why these units? Well, once you have the concentrations in g/100mL you will be able to compare your values with the nutritional values given on the drink bottles’ labels). The sample of the drink was diluted 1/100 (i.e. by a factor of 100). This was an essential step in the method because, without it, the machine used to analyse the glucose concentration (spectrophotometer) would have given an error as the concentration would have been too high for accurate detection. What this means for you is that the dilution factor will need to be taken into consideration in your calculations (remember the aim is to calculate the concentration in the original drink and not in the diluted drink). You measured the concentration of their diluted drink using the spectrophotometer and their results were provided to them in the units mM (millimolar). Glucose Concentration in mM of drink =…
125.1 mg of streptomycin sulphate are dissolved in 10 ml of water. A GC headspace analysis is carried out in order to determine the methanol content of the drug. A peak for methanol is produced which has 73.2% of the area of a peak for a methanol standard containing 0.532 mg/100 ml of methanol in water analysed under exactly the same conditions, What is the methanol content of the streptomycin sulphate in ppm and %w/w? Answer: 311.3 ppm, 0.3113 % w/w.how??
the following data were the results from six replicate determinations of iron in aqueous samples of a standard solution containing 20ppm iron (III) 19.8, 19.6, 19.5 ,19.4, 20.1, 20.3 DETERMINE THE MEDIAN FOR THE DATA
The distribution coefficient, KD = (Cether)/(Cwater) = 3.5 for aspirin at 25 C. What volume of ether would be necessary to extract 0.95 g of aspirin from a solution of 1.0 g of aspirin in 100 mL of water in a single extraction? Show all calculations.
The homogeneity of the chloride level in a water sample from a lake was tested by analyzing portions drawn from the top and from near the bottom of the lake, with the following results in ppm Cl: Apply the t test at the 95% confidence level to determine if the chloride level from the top of the lake is different from that at the bottom.
2.3-3 Calculate the Ksp of the following aqueous solutions: a) 3.60x10-5M Ag2CO3 b) 4.30x10-3M of Ag+ in Ag2C2O4 solution c) 4.80 mol of PbCrO4 dissolved in 2.00 L container.
A solution of potassium phosphate contains a mixture of 164 mg of monobasic potassium phosphate (MWt: 136) and 158 mg of dibasic potassium phosphate (MWt: 174) per milliliter. If a hyperalimentation fluid calls for the addition of 45 mEq of potassium, how many milliliters of the solution should be used to provide this level of potassium? How many millimoles of total phosphate will be represented in the calculated volume of potassium phosphate solution?
Imagine you are attempting to separate these three dipeptides from each other using anion exchange chromatography, and you use a protein assay to identify at what salt concentration each of them is eluted from the column. A graph showing protein concentration as a function of salt concentration is shown below the dipeptides. Which of the three dipeptides is represented by peak #3? (NOTE: the dipeptides are shown in their non-ionized forms. You must assume that they are in aqueous solution at physiological pH, ~7.2) a) Dipeptide A b) Dipeptide B c) Dipeptide C
A scientist wishes to measure the concentration of methyl benzoate in a plant stream by gas chromatography. He prepares a sample of butyl benzoate to use as an internal standard. The results of a preliminary run, which used a solution known to contain 1.37 mg/mL of methyl benzoate (peak A) and 1.51 mg/mL of butyl benzoate (peak B), are shown. The area of peak A is determined to be 3.40×102 and the area of peak B is determined to be 398 measured in arbitrary units by the computer. To measure the sample, 1.00 mL of a standard sample of butyl benzoate containing 2.49 mg/mL is mixed with 1.00 mL of the plant stream material. Analysis of the mixture gave a peak area of 437 for peak A and 415 for peak B. What is the concentration of methyl benzoate in the plant stream?
hree components in a mixture have varying distribution constants between the mobile phase and the stationary phass One of the components has a very low distribution constant, Would this component likely elute first or last and how would you design an experiment or modify the components of the separation to make it perform in the opposite manner?