Madison Kothari- Equilibrium constant

LTE 3:01 X Given CH 3CO 2H(aq) =H*(aq) + CH 3CO 2 (aq) at 25°C, K a= 1.83 x 10-5. What is A G at 25°C for a solution in which the initial concentrations are: [CH 3CO 2H] 0= 0.050 M [H*10=6.4 x 10-8 M [CH 3C0 210 0.10 M O a. 66.4 kJ Ob.27.0 kJ Oc.-12.3 kJ Od.-66.4 kJ Oe. 12.3 kJ

7-9

R-CO>H t ElON -> R-CO2 Bn OTf Bn0 Me LO Bn R-COH PMA. 02 Ets SiH Me orl R. Ph Ph OBn MeOM

4. (Chapter 15 - 472) An aromatic compound C3H;Br has the following H NMR spectrum and a peak at 820 cm in its IR spectrum. Answer the following questions. Chem. Rel. shit area 3.00 2.00 120 2.58 207 2.00 739 2.00 TMS 5 Chemical shift (8) O ppm 10 1 ing 4(a). The IR peak at 820 cm1 in its IR spectrum indicates that the compound is. disubstituted = 4(b) The name of the compound is = Intensity

Using only the information in the pKa table below, write an estimated pK value for each labeled H in the two structures below. For example, if the pKa value of the H labeled a has an estimated value of 50, write 50 in the first box of the answer table and so on. H a H H H H b :0: :0: d H :0: H pka P acid pka a U b C d | U ☐ G CH NH3 50 35 HC=CH 25 O CH,CCH3 19 HO H20 16 15 CH CNH 3 2 NH 9 4 CH,COH 5 3 H₂O -2 18 Ar B

11:24 ← 0.0 Question 5 of 13 H Curved arrows are used to illustrate the flow of electrons. Using the provided starting and product structures, draw the curved electron-pushing arrows for the following reaction or mechanistic steps. Be sure to account for all bond- breaking and bond-making steps. Select to Add Arrows :CI: :CI: Select to Add Arrows > I all 35% Submit CI Select to Add Arrows

I. Look at the MS/MS for paracetamol (a drug), explain the peaks seen at 134 and 110, and draw the structure for the 110 peak. Paracetamòl N-(4-hydroxyphenyliacetamide ESI+, MS/MSs Kky pan_03_c80720211368 1-38 RT: 0.00024 AV 35 N: 107ES T TMSES F ms 12.00g24 00 0 00-10.0g 100g 110.0 CH но 70 (M.H]* 162.0 16 1340 130 100

I need help with my homework

What is the identity of L?     CrO42-     AsO43-     PO43-     Hg2+

me C Edit View History Bookmarks Profiles File Edit Aktiv Chemistry app.101edu.co esc ! Predict the reagent(s) needed to produce this product. 1 GI Q A X + 2 www W 1,503 # 3 E S D Tab Window Help $ 4 R JUN 30 FL % 5 Maps 歌 Question 19 of 50 G MacBook Pro 6 TY 121 FRACES & 7 H A B C D E W U * CO FA 8 J 1 9 H₂ Pd/C H₂ H₂O Pd/C H₂O HCI HBr K Done 2 A www TOARE ) 0 0 C L P > 14%

Reaction C Select Draw Rings More Erase | 7 | | H Li LIOH H,O Reaction D Select Draw Rings More Erase H Li about us privacy policy terms of use contact us help

Which synthesis plan is best to make the following target molecule? CN target molecule option 3 + NaCN Br option 1 + NaCN OH + HCN option 4 Br option 2 + HCN ÕH

Dtermine the Product from the rxn 1.ΗΝO/Η SO, 2 Br2/FeBr3 → Product 3. H2/Pd/C 4. Cl2/FeBr3 5. NANO2/HCI 6. KI Cl Br Br Br Cl CI Cl (a) (b) (c) (d) Br

Predict reagent ????

4-10

3) What is the approximate retention time of benzoate?

l 中国移动令 11:58 РМ @ 1 6% | chapter14 homework Which pair of diagrams shows compounds belonging to the same homologous series? O-H A H- H 0-H H H B H- C- -C -- C H H H H-Ć -0-H H H H H H H D H -C -( -C -C -H -0-H H H. H H H A A В 2/3

urgent pls help. Interpret the NMR results in terms of purity.  What can a chemist do to improve the yield or purity of a product?

what are the reasonable mechanisms ?

== PDF Organic Chemistry (1st editio X H 8 ✓ Draw V PDF Ⓒ File | C:/Users/daniel/Desktop/Practice%20questions_Chapter%2014.pdf Practice questions_Chapter 1 X PD Practice questions_Chapter 1 X Type here to search (T) Read aloud + 81 7 1 W Organic Chemistry Clayden SXC Chegg Search of 2 (D OH + NaOH โค x + + QI Sign in 6. Give a reaction mechanism for the formation of a hemiacetal starting material below. the final product. T ... 18°C Cloudy ^ | 2 X 10:00 PM 5/4/2023 D

Given the dissociation constants for each deprotonation, what is the dissociation constant for the overall reaction (Ka’’)? H3PO4 + H2O  H2PO4- + H3O+                     Ka = 7.11 x 10-3 H2PO4- + H2O  HPO42- + H3O+                           Ka’ = 6.32 x 10-8 Overall: H3PO4 + 2 H2O  HPO42- + 2 H3O+              Ka’’ = ?     1.13 x 105     4.49 x 10-10     8.89 x 10-6     2.23 x 109

Given the dissociation constants for each deprotonation, what is the dissociation constant for the overall reaction (Ka’’)? H3PO4 + H2O  H2PO4- + H3O+                     Ka = 7.11 x 10-3 H2PO4- + H2O  HPO42- + H3O+                           Ka’ = 6.32 x 10-8 Overall: H3PO4 + 2 H2O  HPO42- + 2 H3O+              Ka’’ = ?

Hi ! Can anyone help interpret/analyze this H NMR spectra? I need all the signs and bonds that it shows

Don't use hand raiting please

CHM 251 psession 1 Feb 1 For each molecular ion listed below, indicate what element(s) besides C and H must be in the compound: 107 162 and 164; 3:1 intensity ratio 162 and 164; 1:1 intensity ratio 220, 222, and 224; 1:2:1 intensity ratio 187 and 189; 3:1 intensity ratio

Reagent is NOT (CH3)2CuLi. Which one works from the answer bank? iPrMgBr is (CH3)2CHMgBr

+ • What are the mayor arganic product of the following reaction •What is the stereo chemistry that is indicate for the reactions 1. BH 3/ THF 2. H₂Oz/NaOH´ Brz EtOH > H₂/9d/c HB c ---> -

Question 6 wanted to see if I did it right. Thanks

Based on the following pK, values, which do you think is more important in determining inductive effects: electronegativity or distance from the reaction center? Explain. F CI HO. HO. HO, F pk = 2.68 pK = 3.85 pKa = 2.95 pKa = 3.97

What is the pKa value of molecule C? OH soni +

į. A sample of edible oil was subjected to analysis using mass spectrometry (MS). The following mass spectra (X and Y) were obtained. The spectra represent 2,4- decadienal and squalene. Identify the spectrum of 2,4-decadienal and squalene and explain your answer. H3C. H 2,4-decadienal Squalene 81 0.2- 0.1 -41 67 95 1231 L 10352 100 200 300 400 500 m/z X 0.2- 69 0.15 - 81 0.1 - 0.05 .41 95 10949,7520sg83P8732 334136BDE234494891 100 200 300 400 500 m/z Y Scaled Intensity Scaled Intensity

7. Fill the absorbance value below; Path length 0.4 0.6 0.8 1.0 0. 0.2 25 12.5 6.25 3.125 % T 100 50 Absorbance

can you help me determine what c4 this is? It could be: 1-butanol, 2-butanol, 2-methyl-1-propanol , or cyclopentanol It had a boiling point around 93-104

6. (Chapter 15 - 47b) An aromatic compound, C9H12 has the following H NMR spectrum and a peak at 750 cmt in its IR spectrum. Answer the following questions. Chem. shift Rel. area 1.19 2.31 2.64 7.13 1.50 1.50 1.00 2.00 TMS 10 3 O ppm Chemical shift (6) 4(a). The IR peak at 750 cm in its IR spectrum indicate that the compound is. disubstituted = 4(b) The name of the compound is = Intensity-

CH3-C-OH Keq + H2N-C2H5 CH3-C-o H3N-C2H5 + pka = 5 pKa = 11 or Keq = 106 ; Keq > 1 (favors in the forward reaction) %3D PA log Keq = 11 - 5 = 6 NH4* + H20 pka = 9 NH3 + H3O* pKa = -2 %3D log Keq = -2 - 9 = -11 Keg = 10-11 Keg < 1, reaction favored in the reverse direction, Try: Write the product of the following acid base reactions. Also calculate the Keq for each reaction P + HCI: CH3CH,ÖH + CH3LI OH t CHq Li 2 NõLi t CH Chapter 5- Chemical Reactions and Mechanisms (307 Fall 2020) KSethi

The ultraviolet absorption spectrum of 4-methyl-3-pent-2-one in ethanol is shown below. Determine Amax and ɛ for this compound. The concentration of the solution used was 6.20 × 10-5 moles•L-¹, and the cell path was 1.00 cm. Absorbance 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 200 nm 250 300 CH3 H 1 C=C 400 1 CH3 C-CH3 11 500

The following statements (parts a-e) describe a specific reaction along with its regio- and/or stereo-control. Match the reaction conditions below (1-8) that correctly corresponds to the statement. Answer with 1, 2, 3, 4, 5, 6, 7, or 8. H₂ 1. Hg(OAc)2, H₂O 1. BH3, THF H₂ Lindlar's cat. Pd/C 2. NaBH4 2. H₂O₂, H₂O, OH- Condition 4 Condition 1 Condition 2 Condition 3 H₂O+ HBr NaNH, HBr H₂O2 Condition 7 Condition 8 Condition 6 Condition 5 a. Reaction condition for the reduction of an alkyne to a cis-alkene. b. Markovnikov addition of water to a double bond, with no carbocation rearrangement. c. Anti-Markovnikov addition of HBr to a double bond. d. Anti-Markovnikov addition of water to a double bond. e Reaction condition to change 1,2-dimethylcyclohexene into cis-1,2-dimethylcyclohexane.