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The breathalyzer test is based on the fact that the concentration of alcohol in

ID: 1049705 • Letter: T

Question

The breathalyzer test is based on the fact that the concentration of alcohol in one's _ is directly proportional to the concentration of alcohol in one's blood. The device used to measure the alcohol content of a person's breath is the _. There are many different compounds that are classified as alcohols For example, the alcohol found in rubbing alcohol is a different chemical compound than the alcohol present in alcoholic beverages. Ethanol is the name of the alcohol in alcoholic beverages. What is the chemical formula for ethanol? The color of dichromate ion in solution is _. The color of chromium ion in solution is _. Which chemical should you handle with care in this experiment (see next page)? What is the first thing you should do if you get some on your skin?

Explanation / Answer

1.breath

2.breathanalyser

3.CH3CH2OH

4. orange , yellow (The change in equilibrium is visible by a change from yellow (chromate) to orange (dichromate), such as when an acid is added to a neutral solution of potassium chromate)

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