LAB REPORT 6 for QAQC

Please answer number 36-41 only.  True or False

ANSWER ME! PLEASE ANSWER ME! DEADLINE TOMORROW PLEASEEEE A. Identify the acquired charges of each material in the following pairs if they are rubbed together.  1. glass and polyurethane 2. leather and fur 3. sturofoam and rubber 4. polyester and dry hand

#1. Part A. in a drug discovery program, a hit compound________. A. Shows activity in an animal model of disease B. Is active in target/ whole-cell assays in vitro C. Is purchased from a commercial vendor D. Is derived from screening natural product libraries Part B. When using TLC to monitor an organic chemistry reaction, which could be an indication that your desired reaction has gone to completion? A. the stationary phase changes colors B.the mobile phase runs to the top of the tlc plate C.the starting material spot disappears and a new spot appears D,the starting material spot remains on the tlc plate

TEST/REAGENT EXPERIMENTAL OBSERVATION A. Orcinol a. Brick red precipitate B. Benedict's test b. Magenta solution C. Ammoniacal silver nitrate c. Colored complex D. FeCl3 d. Red to blue litmus E. C6H5SO₂Cl, excess NaOH e. Blue green compound F. NaOH, H₂O, heat f. Decolorization G. t-butyl chloride/ AICI3 g. Liquid residue (lower layer) Silver mirror H. Br₂ in water, dark h. I. NH₂OH-HCI, KOH, FeCl3 i. Orange to red crystals J. Resorcinol Red condensation product Orange precipitate K. 2,4-DNPH k. L. lodoform test I. Yellow solution m. Yellow precipitate Given the following reagents and tests above, what could best differentiate the two compounds below? Provide also the letter of the expected experimental observation and state which of the two would give positive result. i تر j. "NH₂

You will make Nylon-6,10. What does the 6 and 10 refer to? PROCEDURESynthesis of NylonIn a small beaker dissolve ~ 0.5 mL of sebacoyl chloride in 12 mL of ether. In a smalltest tube get ~ 6 mL (~1/4 of a 6 “ test tube) of 1,6-diaminohexane solution in water.In order to form the good polymer fibers, it is best to not mix the solutions. Youshould try to layer one solution on top of the other. First pour the 1,6-diaminohexanesolution into a 100 mL beaker. Then slowly pour the sebacoyl chloride down the sideof the tilted beaker with minimal mixing. At this point you should see two distinctlayers with a white film at the interface. Hook the nylon which forms at the interfacewith a straightened paper clip and pull slowly straight up as high as possible. Thenwrap it around your large beaker and then continue to wind the polymer around tillthe reaction is complete. Rinse your polymer in DI water to remove any salts or acidthat may be present.Weigh your product and characterize it by…

TEST/REAGENT EXPERIMENTAL OBSERVATION A. Orcinol a. Brick red precipitate B. Benedict's test b. Magenta solution C. Ammoniacal silver nitrate c. Colored complex D. FeCl3 d. Red to blue litmus E. C6H5SO₂Cl, excess NaOH e. Blue green compound NaOH, H₂O, heat F. f. Decolorization G. t-butyl chloride/ AICI3 g. Liquid residue (lower layer) H. Br₂ in water, dark h. Silver mirror i. Orange to red crystals I. NH₂OH-HCI, KOH, FeCl3 J. Resorcinol K. 2,4-DNPH j. Red condensation product Orange precipitate k. L. lodoform test 1. Yellow solution m. Yellow precipitate Given the following reagents above, what could best differentiate the two compounds below? Provide also the letter of the expected experimental observation and state which of the two would give positive result. FB HO НО ||I IT HT Illo Il

A student use the same protocol as in the lab manual to extract 4 chloroanilline, benzoic acid and naphthalene. Below are the steps he took Step 1 - Dissolve all three in 15 ml ether and place in separatory funnel Step 2- Add 15 ml of hydrochloric acid and mix well Step 3 - Isolate the aqueous layer and add sodium hydroxide which resulted in a precipitate Step 4- Add 15 ml of sodium carbonate to the ether layer and mix Step 5- Isolate the aqueous layer and add hydrochloric acid, which resulted in a precipitate. Step 6- dry the ether layer and collect the solid that is left

esc A common ketone starting material is shown below. Predict the major product for each reaction based on the reagents given. Ignore any inorganic byproducts. Select to Draw 1 I 1 CH3NH2, pH 4-5 9 16 > a 20 Select to Draw 1. NaBH4 2. H3O+ 000

Answer aside from Iodoform test.

10. Fractional Distillation: This lab was viewed via a video and described in detail in lab class. You are distilling apart hexane (bp = 68) and toluene (bp 110). Your boiling point for the first fraction is 48°C. Why is the boiling point so low (most likely reason)? !! azeotrope with water non-resonance of hexane O resonance of toluene student error O seriously impaired thermometer

I. True or False. ____________4] Xylose gives a positive result with Molisch’s, Seliwanoff’s, & Bial’s-Orcinol tests.____________5] Aniline-acid oxalate can be use as a mobile phase for the development of the chromatogram.____________6] Ethanol (95%) & 10% TCA are used to precipitate glycogen from the solution.

Which method can be used to prepare CH3CH2CH2CH2NH2? NH3 (large excess) (a) CH3CH2CH2CH2B. (1) NaCN (2) LİİAIH, (3) H20 (b) CH3CH2CH2B NH3, mild acid (c) CH3CH2CH2CHO NABH3CN or NABH4 (d) All three methods would work. Answer (a)

2. A MgCl2 stock solution that is 25 mM is provided by a PCR kit. We will prepare a 10 ul PCR reaction that needs to have a final concentration of 5 mM. How much of the stock magnesium chloride do we need to add to our PCR reaction?

1.What are the factors to consider when choosing an emulsifier? 2.What is the recommended type of emulsifier to be used on o/w and w/o products? 3.What is HLB and what is it used for in o/w or w/o products? 4.What are some of the factors that affect emulsion stability?

Consider the synthetic sequence shown. Draw the structures H2C=CH2 of organic compounds A and B. Omit all byproducts. 1) B2H/THF 2) HО2, NaOH/H,о Draw compound A. Select Draw Rings More Erase compound A HO РСС compound B 1. CH3CH2MgBr 2. H3O* 3. CrO3 Draw compound B. Select Draw Rings More Erase

hi please help me i need it before 10:30 thank you make it short only 2-3 setences thank you Give an example of process of gelatinization. Explain the process and the principle behind.

PPedict prodluct below. -PEL norcachion

PLEASE ANSWER PARTS D,E,F

35-38. Ethanol is freely soluble in water, but ethane is insoluble. Using principles of Нн Н-С-С-н Н-С-С-О: нн intermolecular forces describe... 35. ...what is needed for a solute to dissolve in a solvent. нн ннн ethane ethanol 35. ...why ethanol dissolves in water. 36. . why ethane does not dissolve in water. ... 38. Draw the IMF that is formed between water and ethanol.

hello, i need help with this 2 questions assingment, this is organic chemistry 2, address the 2 questions, please help me

Based on the following samples, which have positive result with iodoform test? Explain. a. Acetaldehyde b. Benzaldehyde c. Acetone d. Acetophenone e. Isopropyl alcohol

Why does a solid form at the interface of the two solutions?   PROCEDURESynthesis of NylonIn a small beaker dissolve ~ 0.5 mL of sebacoyl chloride in 12 mL of ether. In a smalltest tube get ~ 6 mL (~1/4 of a 6 “ test tube) of 1,6-diaminohexane solution in water.In order to form the good polymer fibers, it is best to not mix the solutions. Youshould try to layer one solution on top of the other. First pour the 1,6-diaminohexanesolution into a 100 mL beaker. Then slowly pour the sebacoyl chloride down the sideof the tilted beaker with minimal mixing. At this point you should see two distinctlayers with a white film at the interface. Hook the nylon which forms at the interfacewith a straightened paper clip and pull slowly straight up as high as possible. Thenwrap it around your large beaker and then continue to wind the polymer around tillthe reaction is complete. Rinse your polymer in DI water to remove any salts or acidthat may be present.Weigh your product and characterize it by…

а. ОН 1. TBSCI imidazole, CH2Cl2 A DMF, -18 °C to rt 2. NalO4, CH2Cl2 80% НО OH large excess

n eFundi : NCHE 121 1- E NCHE 121 - Test 8 - Ve x b My Questions | bartleb x R° (PDF) The Fourth Indus x R° (PDF) In dis tree - 4 W x G 3-ethyl-1-iodo-2-meth x A docs.google.com/forms/d/e/1FAlpQLScN5aWTObzfQAgIF5ETgigA7N4LhreJo3ILGJ6Zwl0D7iboNQ/formResponse Figure 7 Br CH3- CH2- CH–CH3 Hs° + Question 8: Which mechanism will give the main product in the reaction shown in Figure 7? * SN1 SN2 E1 E2 17:58 P Type here to search 39°C Partly sunny 2021/11/04

Give answer all questions with explanation please

Name of experiment : Gas Chromatography (GC);Separation of alcohols Q1:Purpose of experiment Q2:Introduction

1. The process of purifying soap by adding excess NaCl is called_________* Salting-in Salting-out Saponification Hydrolysis   2. Heating of the mixture of ribose and Bial's reagent   cherry red complex brick red precipitate purple junction blue-green product no reaction   3.Adding Molisch reagent to starch and layered with sulfuric acid   cherry red complex brick red precipitate purple junction blue-green product no reaction

R. 10. To extract benzoic acid from a mixture of aniline, and methoxybenzene, we follow the steps, dissolve mixture NaOH(aq) organic layer in ether aqueous layer b) dissolve mixture HCl(aq) in ether dissolve mixture in ether d) dissolve mixture in ether H₂O H₂O organic layer aqueous layer organic layer aqueous layer organic layer aqueous layer separation separation separation separation aqueous layer HCI. Cone precipitaion and filtration aqueous layer NaOH(aq) organic layer aqueous layer precipitaion and filtration evaporation precipitaion and filtration

Questions: SUbpart 2,3,4. Pls explain in paragraph form :>

• What if there is no stability in the emulsion? • How does an emulsion work? • How do you prepare an emulsion? • Provide and explain examples of defoamers that you recognize.

When would you use recrystallization technique as opposed to extraction? What is the relative polarity of the compounds which can be separated using this technique?