I need the answer to question #3 I put wuestion #1 since you need it for #3. please use clear han...
Can you please give as much detail as posible, I am completely lost. Problem 3. Explaining a GLC Elution Order (6p). Below is a table of physical data for isopropanol, ethyl acetate and propyl acetate. Problem 3 Physical Constants Table Chemical Name Chemical Formula Chemical Structure Molar Mass (g/mol) Boiling Point (°C) Density (g/mL) OH Isopropanol C3H80 ver 60.1 82.5 0.786 Нас CH3 O Ethyl acetate C4H802 88.11 77.1 0.902 H3C CH3 Propyl acetate CsH1002 CH3 102.13 102 0.888 H2C...
10. Using your answer to 6e: 6e: What percent of the mixture obtained in reaction 1 is the para isomer? para isomer : 37.9% a) How many millimoles of the para product were present in the isomeric mixture added in the first step of reaction 2? Please show your work. b) In order to selectively acetylate the para isomer, equimolar amounts of acetic anhydride and the para isomer must be present. Using the millimoles you obtained as your answer to...
I need help with solving these two questions Thanks 1?2? 1. The equilibrium constant for the following reaction at 100°C is 0.11. If M ethanol (C2H,OH) and 0.810 M acetic acid (CH3COOH) are combined, what is the equilibrium concen- tration of ethyl acetate (CH3CO2C2Hs)? 6.816 2H,OH (aq) +CH,COOH(ag)CH,CO,C2Hs(ag) + H2O() 2. The KM for the decomposition of solid ammonium hydrogen sulfide to ammonia gas and hydrogen sulfide gas is 1.8 × 10-4 at 25°C. If ammonium hydrogen sulfide decomposes in...
Using your answer to question 10 part a, calculate the theoretical amount (in mg) that was expected for the p-methyl acetanilide product. Be sure to show your work. 10a: 37.9 x 17.5 / 100 = 6.6325mmol Reaction 2: Reduction NO2 NH4HCO2 NH2 + NO2 Pd/C NO2 NH2 NH2 m-methylaniline p-methylaniline 0-methylaniline ortho meta para Procedure for Reaction 2: 1) The mixture of ortho, meta, and para isomers obtained from reaction 1 (2.4 g, 17.5 mmoles) was added to a 50...
can you please answer 1,2, and 3 and show the steps 1. Calculate the pH of a buffer solution made by adding 20.0 mL of 0.200 M acetic acid solution with 10.0 mL of a 0.200 solution of sodium acetate. K, for acetic acid is 1.8 x 109. Assume the total volume is 30.0 mL. 2. Calculate the pH of a buffer solution made by mixing 10.0 mL of 0.20 M ammonia with 15.0 mL of 0,15 M ammonium chloride...
That is the entire reaction and below is the question I need answered Reaction 3: Acetylation NH2 NH2 (acetic anhydride) NH2 NH2 0-methylaniline NH2 m-methylaniline p-methylaniline HN o-methylaniline m-methylaniline 0 p-methylacetanilide Procedure for Reaction 3: 1) The solution of the three isomers of methylaniline in ethyl acetate was cooled to 0°C. 2) An equimolar amount of acetic anhydride to the quantity of p-methylaniline theoretically present in the solution was added dropwise with stirring. 3) The stirring was continued for 15...
K2CO3 1.5 H20 Br он heat 2,3-dibromocinnamic acid trans-1-bromo-2-phenylethene Compound MW mp (C)bp (C) density (g/ml) mol) 2,3-dibromocinnamic acid 307.97 93-95 (threo) n'a n a 202-204 (erythro)E K CO.1.5H:O1 methylene chloride 138.21 84.93 56.11 891 na n a n'a 39.6 n a n a 1.33 n a 3 MKOH 2. a. What is the by-product formed in this reaction (not shown in given reaction equation)? b. What is the purpose of adding 3 M KOH at the beginning of the...
I need help with questions 1-4 please. have not yet gone over pH in lecture yet, so I'm a little lost. Thanks 1. Why is not the pH at the equivalence point always equal to 7 in a neutralization titration? When would it be 7? (Hint: consider the strengths of the acids and bases) 2. What is the pH of the solution obtained by mixing 50.00 mL of 0.250M HCl and 50.00 mL of 0.500M NaOH? 3. What is the...
I really need someone to explain 3 and 4. I don't understand it. If you're feeling generous, would you also mind checking my work for questions 1 and 2? Thank you! ( PNP End-of-Chapter exercises: 3.47, 51, 55, 57, 59, 61, 65, 67, 71, 73, 75, 77, 79 2 520 1. What is the molarity of a solution prepared by dissolving 14.2 mL of acetic acid, HC2H2O2, in 100.00 mL of water? The density of acetic acid is 1.008 g/mL....
I need help calculating the mass percent and with the post lab question #2. Part 1 Mass Initial | Final Vol Nall Moles concen. KPHCG (ML) I (m2) Used (m2) KHP (mol)/NaOH(M) 0.28470.00 13.60r 13.600 10.00- 0.1025 2 UZ + ZANT 13.600 24.45 1 10.85 0.001128 10.40 Aug NaOH Concentration (M):0.1032 Part2 Vinegar identification # 4 Vinegar sample date: (011/ Vol Vinegat Initial Final Yol NaOH Mol Acotic Mass Acctic Mass % Titr ULST I OML Used (ml) Acid (mol)...