Select the pair of compounds that CANNOT be distinguished by their IR spectr. O A. CHCI3 and CCI4 ОВ. O2 and CO2 O2 and N2 OC. D. H2C=CH2 and H2C=C=CH2

For the substituted cyclohexane compound given below, highlight the groups – by clicking on atoms – that are cis to the hydroxyl (OH) substituent. CH3 Br F. но

7. Assign each compound below as R or S in the box provided. Br HO OH OANH N

Three liquid samples of known masses are heated to their boiling points with the use of a heater rated at 500.0 W. Once the boiling points of each sample are reached, the samples are heated for an additional 4.96 min, which results in the vaporization of some of each sample. After 4.96 min, the samples are cooled and the masses of the remaining liquids are determined. The process is performed at constant pressure. The results are recorded in the table. Liquid CH₂OH Boiling point (°C) 64.5 C4H10 -1.00 C6H6 80.1 Initial mass (g) Final mass (g) 465.2 340.37 496.1 95.69 683.6 339.68 Calculate the molar enthalpy of vaporization, AHvap, and the molar entropy of vaporization, ASvap, for each sample. Assume that all of the heat from the heater goes into the sample. 35856.63 AH vap of CH₂OH: Incorrect kJ mol

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C31 H5y 2. Compound X, reacts with excess H/Pd to give C31 Hoo How many double bonds and how many rings are in X? Show your work. 150 3 APR étv 1 MacBook >> D00 000 20 F8 F9 F7 F6 F5 F3 F4