A student was given an unknown compound dissolved in acetone. The student decided to identify the compound by TLC. The student decides to use a 1:1 hexanes/acetone solvent system. Once the TLC plate was finished running, the student pulls out the TLC to look at it under UV. The student's partner remarks that none of the spots showed up. What would be best for the two students to try next? O A. Redo the TLC plate; it was the students technique that caused the problem. E. Concentrate the sample solution used. C. Both D and E. O D. Spot the unknown compound and see if it shows up under UV without running the plate. B. Use potassium permanganate stain on the plate to see if it shows up.

A student was given an unknown compound dissolved in acetone. The student decided to identify the compound by TLC. The student decides to use a 1:1 hexanes/acetone solvent system. Once the TLC plate was finished running, the student pulls out the TLC to look at it under UV. The student's partner remarks that none of the spots showed up. What would be best for the two students to try next? O A. Redo the TLC plate; it was the students technique that caused the problem. E. Concentrate the sample solution used. C. Both D and E. O D. Spot the unknown compound and see if it shows up under UV without running the plate. B. Use potassium permanganate stain on the plate to see if it shows up.

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

At 475 oC, Keq = 0.230 for the reaction: 1/3 NO2(g) + 1/3 N2O(g) NO(g) (a) What is the value of Keq for the reaction NO(g) 1/3 NO2(g) + 1/3 N2O(g)?Keq = .(b) What is the value of Keq for the reaction NO2(g) + N2O(g) 3 NO(g)?Keq = .(c) What is the value of Keq for the reaction 3 NO(g) NO2(g) + N2O(g)?Keq = .
Hi! I am unsure of how to solve this problem. Thank you!
Fill the blanks by choosing the correct word of the following: 1-H₂S has to be removed from the raw gas. This is done primarily by the process of 2- The colour of sulphur is an important because it gives an immediate indication of ......... and present a 3- Both H₂S and CO₂ are very undesirable, as they cause.. major safety. 4- Sweetening of natural gas always precedes 5- The most widely used for sweetening of natural gas are
A 100-liter empty jar was spiked with 20 mg of TCE (C2HCl3) under room temperature condition. The jar was then closed tightly. What is the concentration (in atm.) of TCE in the air at 25 C? (TCE: MW: 131.4 g/mol; TCE solubility in water (Cs) = 1100 mg/L; Pv (pure liquid at 25oC) = 10^-1.01 atm. KH = 10^1.03 L atm mol-1; KOW = 102.42). if the jar was half filled with water and half filled with air, what were the concentrations of TCE in both air and water at 25C?
Hot gaes Expanding A mixture hot gases expands, changing volume from 2.45 L to 6.82 L, against a constant pressure of 3.22 atm. The P-Vwork involved is Latm .
NaNO2 (aq) + HSO3NH2 (aq) ----> NaHSO4(aq) +N2(g) + H2O (l) Calculate Pc (mmHg), Vpaour pressure of water (mmHg) and PN2 (mmHg) Given ; T = 25.3°C , Atmospheric pressure= 5.89mmHg , no of moles of NaNO2= 0.0118mol
Can you help me with this