Question

Provide a brief rationale for why

( Please help me answer all questions please this is SO important)

When benzoic acid is mixed with inorganic sand, what happens to the melting point of the sample? 6. a. It increases b. It decreases c. It stays the same. d. It increases above the actual melting point then decreases. e. It goes below the eutectic point 7. In thin-layer chromatography, the observed Rr will change upon changing any of the following parameters EXCEPT: a. The solvent b. The functionality of the compound c. The adsorbent d. The level of saturation in the developing chamber with solvent vapors. e. The distance traveled by the solvent front. 8. Which of the following functional groups would have a peak between 1670-1830 cm- in an infrared spectrum? a. Aldehyde b. Amide c. Ketone d. a and c e. All of the above 9. Acetic acid and ethanol both contain-OH peaks in their IR spectrum, however, they can easily be differentiated by a peak near: a. 3300 cm1 b. 3000 cm c. 2260-2215 cm d. 1700 cm1 e. 2150-2100 cm1

Answer 1

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