This graph shows how the vapor pressure of three liquids varies with temperature: vapor pressure, torr 900- 800 700 600- 500 4002 3001 200 100- 0. 100 110 120 Which liquid is the most volatile? Which is the least volatile? 130 temperature, °C Use the graph to answer the following questions: What is the normal boiling point of each liquid? Note: your answer must be within 1°C of the exact answer to be -ethylbenzene -acetic acid pyrrole Suppose a beaker of acetic acid is put inside a sealed tank containing acetic acid gas at 104. degree C and 478. torr. After ten minutes, will there be more liquid in the beaker, less liquid, or the same amount? 140 most volatile: least volatile: ethylbenzene: acetic acid: pyrrole: O more O less O the same choose one choose one 0 °C °℃ °℃ X ✪ ✪ S

Q: e.

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Q: OH π PBr3 10-0 Mg, E₂0 Br Mg, E₂0 note: two carbons NOT three

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Q: 1. A 200. mL solution contains 4.00 g Ba(OH)2. Express the concentration of the solution in M.

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Crystal Structures

Solids are present all around us. They have different properties and applications. Diamond and graphite are two well-known solids. Diamond is the hardest material in the world and is used in making jewelry. Graphite on the other hand is soft. The lead of your pencil is graphite. Why are they so different in appearance and properties despite the fact they are chemically the same? Both are allotropes of carbon. The answer lies in the structure, the way constituent particles are arranged in the solids.