I have explained in details. Hope this is satisfactory.
how ro label pka and the equivalence point halfway end point 14 C 12 10 2...
Please here is my lab questions for titration of weak acid. The questions are very short. You have to determine the answers by just looking at the graph based on the data points. Please give me the answers of all of them. I would really appreciate. Please calculate the molar mass question #7 as well. It will be of great help to me. Mass of the unknown acid: 0.2grams Concentration of NaOH = 0.0500M Formuld Bal pH of weak acid...
Assign label to each hydrogen of vanillyl acetate of NMR spectrum. Is this correct? 28'6 -9.87 -7.45 -7.18 -3.87 -2.34 Base-catalyzed vanillin esterification product Simulated High Resolution Spectrum 7.45 -7.18 4 TUTM 03 TTTTT 7.7 7.5 7.3 7.1 6.9 Chemical Shift DE A F001 3.06- 3.06- 11.5 10.5 9.5 8.5 7.5 6.5 3.5 2.5 1.5 0.5 -0.5 -1.5 5.5 4.5 Chemical Shift
what is the equivalence point in mL and how do I calculate it? FIE LUI E Scale E Print Store Pages Save Open New Run 1 olume HCI (mL) pH 0.5 OWN 4.5 12 5.5 6 12.54 12.51 12.47 12.43 12.39 12.35 12.29 12.24 12.18 12.12 12.04 11.96 11.86 11.74 11.56 11.25 9.95 3.76 2.96 2.73 2.57 2.48 2.41 2.36 6.5 Hd 16 7.5 18 19 8.5 9 20 21 9.5 10 10.5 22 23 11 24 25 11.5 26
I have to complete a lab report for a class using data collected and I have no idea how to use this data. Please help! Name Date REPORT SHEET Weak Acid vs. Strong Acid Titration EXPERIMENT 16 Determination of pKa of Unknown Acid Volume at equivalence point: Volume at one half equivalence point: - pka: Ka: Show work below: Concentration of Unknown Weak Acid and HCI Unknown Acid HCl Volume of Acid Molarity of NaOH mL of NaOH at equivalence...
A variety of spectra for an organic compound with molecular formula C10H16O are presented below. The experimental accurate mass using (+) APCI source is 153.1280 u. The 1H, 13C, COSY, HSQC and HMBC NMR spectra are given in the following slides. Propose a structure for this unknown and answer or address the following questions or requirements: d. If there are still any questionable assignments, propose additional NMR experiments which would solve those questions and briefly explain specifically what correlations you...
A variety of spectra for an organic compound with molecular formula C10H16O are presented below. The experimental accurate mass using (+) APCI source is 153.1280 u. The 1H, 13C, COSY, HSQC and HMBC NMR spectra are given in the following slides. Propose a structure for this unknown and answer or address the following questions or requirements: a. Using the most abundant isotopes of C, H and O, what are the errors in ppm and milli-Daltons for the experimental accurate mass?...
analyze this NMR & IR S23 CDC13 QE-300 240 UN (43 MIL.) 10.02s, 1H), 7.716.J-2 Hz. ) 2.0 11.5 11.0 10.5 10.0 9.5 9.0 8.5 8.0 7.5 7.0 6.5 6.0 4.0 3.5 3.0 2.5 20 15 100.5 0.0 -0.5 -1.0 -1.5 -2. 5.5 5.0 4.5 fl (ppm)
5. Based on this analysis, the compound might be or contain the following substructure: 6. How many different types of carbons appear to be present? What are the chemical shifts for these carbons? UN (43 MIL.) 10.02s, 1H), 7.716.J-2 Hz. ) 2.0 11.5 11.0 10.5 10.0 9.5 9.0 8.5 8.0 7.5 7.0 6.5 6.0 4.0 3.5 3.0 2.5 20 15 100.5 0.0 -0.5 -1.0 -1.5 -2. 5.5 5.0 4.5 fl (ppm)
7. What kind of carbons correspond to these chemical shifts? 8. Based on this analysis, the unknown might contain the following substructure: UN (43 MIL.) 10.02s, 1H), 7.716.J-2 Hz. ) 2.0 11.5 11.0 10.5 10.0 9.5 9.0 8.5 8.0 7.5 7.0 6.5 6.0 4.0 3.5 3.0 2.5 20 15 100.5 0.0 -0.5 -1.0 -1.5 -2. 5.5 5.0 4.5 fl (ppm)
1. How many different types of protons appear to be present? What are the chemical shifts for these protons? What does this indicate (if anything) about the electronic environment of the protons? 2. What are the multiplicities for each peak? UN (43 MIL.) 10.02s, 1H), 7.716.J-2 Hz. ) 2.0 11.5 11.0 10.5 10.0 9.5 9.0 8.5 8.0 7.5 7.0 6.5 6.0 4.0 3.5 3.0 2.5 20 15 100.5 0.0 -0.5 -1.0 -1.5 -2. 5.5 5.0 4.5 fl (ppm)