7. Given the HNMR provided, give the structure of the molecule. The molecular formula is C6H8O₂. The IR shows a strong peak at 1700 cm¹¹. 5 4 3 Chemical Shift (ppm) 8H 2 1 TMS

Which C-H bonds are responsible for the following peaks in the 1H NMR of this molecule? B= C=|| CTH1602 B PPM 10

A chemist must dilute 99.9 mL of 161. mM aqueous silver perchlorate (AgClio,) solution until the concentration falls to 117. mM. He'll do this by adding distilled water to the solution until it reaches a certain final volume. Calculate this final volume, in liters. Round your answer to 3 significant digits.

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5 Molecular formula = C7H₂O₂X, where X is an atom you have to determine MS: Shows molecular ion peaks of near equal intensity at m/z = 204 and m/z = 206 IR: strong absorption at 1699 cm.¹ 3H 2H 2H 160 2H 140 120 100 PPM 80 PPM 60 2 peaks 40 ¹H spectrum 13C spectrum 20

Which of the following molecules is represented in this IR spectrum? INFRARED SPECTRUM TRANSMITTANCE 0.8 0.6 0.4 0.2 3000 Wavenumber (cm-1) NIST Chemistry WebBook (http://webbook.nist.gov/chemistry) B 2000 -NH₂ CH3 OH с 1000 D OH

4000 For the following compound identify what peaks would be found in an IR spectrum. Draw the expected IR spectrum on the graph below. Label each peak with the location and portion of the molecule it represents. 3500 3000 IR spectrum 2500 2000 1500 1000 500 0

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Which of the following compound is consistent with the following ¹3CNMR spectrum? To preview the image click here JOH OH A O A B 80 D 70 60 OH B 50 40 PPM 30 хон с 20 10 D OH 0