Quiz 2 Answers - :2332835 A N SN 9 1A\LQ,’ Please be sure...

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: #:2332835 A N SN 9 1A \LQ,’ Please be sure to fill in your Name, Student ID Number and Laboratory Section Number on your scantron. Tuesday AM - Susanthi 84234 Wednesday PM - Tony 54219 Tuesday AM - Steven 54213 Thursday PM - Briana 54221 Tuesday PM - Tony 54217 Saturday AM — Susanthi 54215 1. Select the correct reagent to add in order to carry out a water/ether extraction of compounds A and B. 3 pts a 3M HCl solution b) saturated NaHCOa so u ion PK“ .40 ‘ 'o ‘OaH solution opts?) d) no reagent needed A e) MgSO4 Nee 4R: my: wee-.31. 50.31— % CLKQN’VBVKGC‘K canoe-sttlixq aLCAd CAN \mfii— mn- Aemcfirfi Ebkcuol Us) 2. Select the correct reagent to add in order to carry out a water/ether extraction of compounds A and B. 3 pts a) 3M HCl solution 6) e b) saturated NaHCO3 solution (CH3CH2)3NH CI OH 0 5% NaOH solution A B d no ent needed {unit SLUT SMMbfl31 \ -O'r’t qmo? e) M9804 S'dtm‘lo‘ie on Mr Sew-‘0“ “A war v§ Comgouvfids (Me Mak‘ffiidkfi Sotubl in c.1432: t fiat—en’s 3 Ned' is trying to complete his extraction in lab but spilled solvent on his notebook and cannotr ad all the information. Using the given information calculate how much of com und A wil emain in the aqueous (water) layer after he performs a single extraction. 3 pts K 3 A t n 6+0 3.5 _ ‘X Kp=2 t” “AL-9‘1" 2= 2.5 ML- 91.0 extracted 100 mL of H20 with 25 mL diethyl ether L A ‘ n “1% Initial weight of compound A = 3.5 g L—P" 2.". ML “Lo [OOMLV‘tb gov: 3.9.x 2593)“ e3S—fi 4. What would be the correct operation if your extraction resulted in an emulsion? 1 pts a) recrystallization b distillation l5x= 35 c-_ auiiono a-rying agen x;‘5.6 e) reduce the pressure on the system 7—61.. 0.5% ‘3'- 3.6-)fl 0.5»; 4- )1. 53.6 ...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern