A 25.0 mL aliquot was taken from a 500.0 mL sample of tonic water containing an unknown amount of quinine and diluted to avolume of 150.0 mL. At 347.5 nm, the fluorescence intensity of the diluted sample was measured as 89.3 on an arbitrary scale.Under similar conditions, a 25.0 ppm standard quinine solution had a fluorescence intensity of 173. Calculate the mass ofquinine in the original tonic water sample.mass:mg* TOOLSx10

Quinine is generally helped to treat malaria that leads by Plasmodium falciparum. This parasite that…

Answered: A 25.0 mL aliquot was taken from a…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Similar questions

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A student performed the fractional distillation of a cyclohexane/toluene mixture. The refractive index of the distillate was measured at 1.4301 with an ambient temperature of 22.0°C. What is the mole percentage of cyclohexane (to 3 sf)? 94.5 Incorrect
20 4. A sample containing ethanol and water was found to have n6 = 1.3400. Calculate the exact percentage of ethanol and water in this example. Show your work. (Hint: Solve this mathematically. Assume a linear relationship between concentration and refractive index. You can make the y-intercept the refractive index of water, and use the slope formula to find the slope. The x axis (concentration) will be from 0% ethanol to 100% ethanol. From this information, you can get the equation of the line, then plug in your numbers from there.)
After performing the manual Albumin assay, you get the absorbance value of 0.205 for a 4.5 g/dL albumin standard and 0.114 for control A. What is the calculated value of the control? (just write a number with one decimal, the units will be mg/dL)
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The doctor ordered Oxacillin 650mg every 6 hours. The instructions on the 2gm vial states to reconstitute with powder with 11.5ml of sterile water for injection, yielding 220mg/1.5ml. How many ml will you administer? using dimensional analysis and show work
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The standard curve provided below will allow you to answer the remaining questions. Generic Standard Curve 0.7 y = 0.9425x- 0.0034 0.6 0.5 0.4 0.3 02 0.1 0.1 0.2 0.3 0.4 0.5 0.6 0.7 Concentration (mg/ml) - Please describe two ways in which you could use this standard curve to determine the concentration of a pigment in an unknown sample.| #1: #2: -What is your rough estimation of the concentration if you determine the absorbance of a sample is 0.150? Absorbance
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