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A 100 mg sample of the synthesized ester was sent to a laboratory for elemental analysis.  The results of this analysis showed that the sample was 4.53 % H, 60.05 % C, and 35.45 % O by mass. Determine the empirical formula of the synthesized ester.  Show all calculations.

A student tested an unknown sample of alcohol with a mild oxidizing agent. 2 mL of the sample was mixed with 5 mL of the oxidizing agent (acidic sodium dichromate solution). The solution turned dark green. The student heated the solution on a steam bath and tested the vapors with blue litmus paper which showed no color change. The unknown sample most probably be OH CH3 CH3 H3C CH3-CH2-CH2-CH2-OH CH2 OH H3C CH,CH,CHCH,OH ČH, CH,CH,CHCH,CH,CH, OH

3- What are the most important five safety rules that you can find inside a chemistry lab? 4- Write down two examples for iodoform test that test for alcohols.