A 50.0 ml juice extract is colorimetrically assayed using Nelson's test. One milliliter (1.00 mL) of the solution and the standard glucose solution (concentration: 1mg/mL) were treated with freshly prepared Nelson's reagent and arsenomolybdate reagent and then diluted to 10.0 mL separately in properly labeled test tubes. Absorbance at 480 nm for the standard is 1.702 and for the sample, 0.926.

A 50.0 ml juice extract is colorimetrically assayed using Nelson's test. One milliliter (1.00 mL) of the solution and the standard glucose solution (concentration: 1mg/mL) were treated with freshly prepared Nelson's reagent and arsenomolybdate reagent and then diluted to 10.0 mL separately in properly labeled test tubes. Absorbance at 480 nm for the standard is 1.702 and for the sample, 0.926.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

If 100 ml of a paracetamol preparation contains 20 ml of a sodium chloride (50% w/v) . What is the percent strength of that agent in the preparation?
2) In an experiment similar to ours, an FeSCN2+ standard curve was prepared (pictured below) and used to extrapolate the FeSCN²+ concentrations from three solutions of unknown [FeSCN²+] that were prepared at the same time. The standard curve was found to have a slope of 1950 M¹ and the three solutions of unknown [FeSCN²+] were found to have absorbances of 0.196, 0.281 and 0.365. Based on these data, what was the [FeSCN2+] in each solution? Absorbance at 460 nm [FeSCN²*] (M)
creat a separation flowchart of Al3+, Sb3+ and Zn2+ without using sulfate or thioacetamine
Seperation of Amino Acids by thin layer chromotography Lab. Please answer #11, #12, and #13 as I am very confused. Thank you for your help!
Calculate the water hardness (mg L-1 of CaCO3) (i.e. calculate the mass of CaCO3) please show working out. thank you :) Sample No. 1 2 3 4 Final Burette reading (mL) 24.40 46.90 24.70 47.20 Initial Burette reading (mL) 0.10 24.40 2.10 24.70 Final-Initial Titre (mL) 24.30 22.50 22.60 22.50
If you have 6.61 g of caffeine dissolved in 72.3 mL of water and the extraction coefficient between H2O and CH2Cl2 is 21.51. How many grams of caffeine will extract into the CH2Cl2 layer if you add 87.6 mL?