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PExam 1 - '7 4 5".3 0 4 “ 3 3A Fall 2008 cu MISTRY...

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Unformatted text preview: _. '7 4 5"} .3 0 4/ “ 3) 3A Fall 2008 ' cu MISTRY 104 Section 001 Exam 1 name: TM‘W Saw/Milk ID: Seat #: 3 :2: The vaporpressure of water at 253°C is 23.8 torr. Determine the mass of glucose (molar mass = 180 g/mol) needed to add to 500.0 g of water to change the vapor pressure to 23.5 tort. R'eprO) .—, [96110)x (3'42?) h (H10) ‘3' a‘gg, 5- 2.7. 73 . _A)'6-4'g X :1 PVA£(H9"O! :. 987 *1” .r ",0) ® 64g 0 90041.03 . ’4“; > a 4”?“ c) 54g “mower- D)fi.4kg w 937 1. 17,73 @iszg M meter?“ 2779+>< 6‘4 - /| l n6 W 27.?8 "-¢0-]"1 5:9 ‘M #hlfi‘wé’f'g'g?“ l "g “209 Use the following to answer question 2. .fl- "“3 /”%~‘; 6'83 j ' km- -.---:"" . The molar volume of a certain form of solid lead is 18 cm3/mol. Mumtng cubic closest packed structure, determine the following: 2. The number of Pb atoms per unit cell. } 3 $5 4 C) 10 D) 12 E) 14 3. What would happen if the kinetic energy of the reactants was not enough to provide the needed activation energy? A) The products would be produced at a lower energy state. B) The rate of the rwction would tend to increase. (,1) The activated complex would convert into products. The reactants would continue to exist in their present form. ) The products would form at an unstable energy state. ...
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