Pre-Lab:Lab Report #1 CHEM2123

D Question 48 Solvent 12cm front 10сm 8cm 6cm 4cm 2cm If the stationary phase is non-polar and the mobile phase is polar, calculate the Rf value of the most non-polar dye. Show your work in order to earn full credit.

Now, on top of the structure of methyl amine (CH3NH₂) below, select the region where the partial positive charge (8+) would be located within the structure. Keyboard controls Add selection & I H H C-N. H H 8

could i get help with questions 1-3 please

Ethyl methyl ketone (1.jpg) Acetaldehyde (2.jpg) A recognition test will be applied to the organic substances given above. Which recognition test is applied to determine the organic substances correctly? Explain.

Using the numbers above the dot structures, click the numbers of the correct dot structures only. Ex: if only #1 and 2 are correct, click 1 and 2 only. 1 ●2 Ca: F: 2 7 6 3 5 1 2 4 3 H 4 5 7 6 [ANN]

Based on the TLC plate shown below, which lane contains the most non-polar compound? -1--+--|- 2 3 1 0 1 O 2 3

Using the numbers above the dot structures, click the numbers of the correct dot structures only. Ex: if only #1 and 2 are correct, click 1 and 2 only. 1 Ca O 5 4 1 3 7 2 2 14: 3 LiO 4 5 6 7 Al He: Ne: 00 12

answer only 1and 2 thank you!

Help me

Please send me the question in 20 minutes it's very urgent plz find

H₂N Structure: Name: 2-methyl propan-1-amine IR spectrum (paste it here): Paste it here (take a screenshot) and properly annotate (tip: use shapes/textbox) 890RBANCE 1.00 085 0.90 0.85 0.00 075 0.70 065 060 055 050 (145 0.40 035 0.30 025 020 015 0.10 All 0.00 SOM GOO 1C00 1600 2000 2003 3000 3600 4003 AIST database URL link (paste it here): DO NOT GO OVER 1 PAGE/SPACE LIMIT PER COMPOUND Student name: Identify all characteristic IR signals: Functional group Section number: Molecular motion Observed wavenumber value* (range) Literature Peak intensity Peak shape *Please use IR tables from lab manual 5

Question 2) A polar compound will have a    (smaller/larger) Rf when a polar stationary phase is used

Considering IR spectroscopy, which of the following statements is incorrect?   Question 20 options:   Primary amines produce two signals resulting from symmetric stretching and asymmetric stretching   C=O bonds produce strong signals in an IR spectrum while C=C bonds often produce a weak signals   Symmetrical C=C bonds and C≡C bonds do not produce signals   Concentrated alcohols give rise to broad signals while dilute alcohols give rise to narrow signals   Carboxylic acids exist as dimer due to hydrogen bonding and thus produce a narrow signal at 3600 cm-1 and a characteristic signal due to C=O at 1700 cm-1

Design a procedure to distinguish between the following four substances: CH3OH(1), KI(s), C12H22011(s), and CGH6(1). Hint: Picture it like you have 4 beakers. You know one beaker has CH;OH, one beaker has KI, one peaker has C12H22011, and one beaker has CgHg. However you don't know which beaker is which for sure. rou need to design a series of tests you could do in order to label each beaker with the compound t contains. For example, you might say something like "First, I will do a реcause test; this will tell me Now, I am down to 3 beakers...."

Started: Jul 20 at 10:28pm Quiz Instructions Students: The test is timed and required Lockdown Browser. Students have 60 minutes to cannot go back or reattempt to answer a question. Questions must be answered in order. T sure you have a stable connection prior to beginning the test. Please use Google Chrome. Mrs Lockhart Question 7 Name the following OH O 1-Aminophenol Q NH₂ O 3-Amine-1-hydroxybenzene O 3-Hydroxyanililne O 3-Aminophenol Q 2 W F2 # 3 E F3 $ A % 5

0 Name these organic compounds: structure HỌ — CH,— CH OH | CH₂-CH-CH₂-OH HỌ — CH,— CH,—OH Explanation # 3 Check 20 F3 E $ 4 000 000 R name X 0 0 5 Ś MacBook 6 F6 Y Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms a 7 38 CO 8

4. Below are the structures of some medications. Circle and identify functional groups the structures. H₂C H3C cole MDPV O Mephedrone Cocaine H CH3 CH3 CH3 CH3 Methylone H N CH3 CH3 Amphetamine CH3 NH₂ HO [18 HO HO Aco H OH 10-deacetylbaccatin III

st 0 Question 6 HO 1 H₂N-C-C-OH CH₂ C=0 Quiz: Lab 7-Separation of Amino Acids OH Aspartic acid (Asp) Here are the structures for 3 common amino acids: Aspartic acid, Phenylalanine & Tyrosine MOST polar HO H₂N-C-C-OH CH₂ LEAST polar Phenylalanine (Phe) piercemil.instructure.com Travel the FARTHEST on the plate Question 1: Which of the 3 amino acids is the MOST polar? Question 2: Which of the 3 amino acids is the LEAST polar? Question 3: Since the TLC plate is covered in the polar silica gel, which of the 3 amino acids would travel the farthest on the plate? Question 4: Since the TLC plate is covered in the polar silica gel, which of the 3 amino acids would travel the least on the plate? Travel the LEAST on the plate но H₂N-C-C-OH CH₂ Based on their structures (R-groups) and what you learned from the video on TLC, answer the following questions: 31 ОН Tyrosine (Tyr) Tyrosine Phenylalanine Quiz: Lab 7-Separation of Amino Acids Phenylalanine Tyrosine + C ♦ + 2 pts tv E

Consider the molecule below carefully. Select all of the organic functional groups present in the molecule below: O odgo H₂C Secondary amine Aldehyde Primary amine Alcohol/hydroxy Ketone Amide bond (peptide) NH₂

Part A Find the number of ibuprofen molecules in a tablet containing 155.0 mg of ibuprofen (C13 H18 O2). Express your answer using four significant figures. ΑΣφ molecules G Search or type URL esc & dele 7. 8. 3 4 T 11 G K S 1) C V 38 36 command option command

need help analyzing. was told that it was monosubstitued and the formula found was c11h140 but the mass is supposed to be 178 so it's likely missing an OH group somewhere. not sure how to draw the strcuture or where the OH group is

Answer to question 1 please?

Could you please provide more details or clarify your question so that I can better assist you?

Which of the following is a tertiary amine? Select the single best answer.

How would you draw a structure like (+-)hexane-3,4-diol?  What about (+)hexane-3,4-diol or (-)hexane-3,4-diol? Would it be impossible to draw these two because + and - separately are determined via polarimetry and not spatial arrangement?

QUESTION 41 Which IR peak region can differentiate between an amine and an amide? 3200 – 3500 cm-1 1650-1750 cm-1 800 – 900 cm-1 2800 – 3000 cm

R Please don't provide the handwriting solution

Not graded. Please help explain the answers provided please. 1-11. This isn't graded as the questions and answers are already provided I need help understanding the answers

Do not give handwriting solution.