**Unformatted text preview: **C101 Fall 2010: Quiz 3 Using a #2 pencil, darken the balloon on the answer sheet corresponding to the best answer. P1f VJ}; 2 PszXTZ .l’V = ffRT - R = 0.0821 L urmfmal K 1 aim : 760 for?
benzene: heat of fusion 30.45 cang heat ofvaporization 130 cal/g q = 111ch Change“ I 0.418 cal/g°C
“7? M P! 71. A sample of oxygen gas at 325 K occupies a volume of 500.0 mL at 1.50 atm pressure. What
Pas? pressure must be applied to compress the gas to a volume of 150.0 1111. at this tempgamre? ° 1/; MW. .. -
. .00 atm d. 1.50 atm e. 0.500 atm Tamales! a. 500 arm 1). 150 atm .. ___.- “i7; ' m'mmjsnml» 72. What is the volume when a 2.0 mole sample of hydrogen gas has a pressure of 16.0 arm and
the temperature is 80.0 K? M f“ 2.049} a?“
@08211. b. 1.22 L c. 10.0 L d. 44.8 L e. 210L Wsﬁeyr Vs $ng4.1 (immgm madam... . . . . . /é am
73. Which gas has London disperslon as Its on]; intermolecular force?
a 1-1'20 c. S 2 d. CI}3C1 'e. H3 ﬂaps/qt
s em“ a M” ,. a M a W" I
74. How much heat is needed to melt 20.0 g of benzene at the _meldng point of benzene (55°C)? Note: There is some “potentially useful information’g Emtjop of the page. a. 46.0 cal am. Km! #01444“ b 8.36 cal .. " ﬁt?!" elm/43g... ”’3 ,cvlwl-e.
c1 09 cal (gﬂ,%>( 30%,) i; 60?a& amrwwér W}
i I. 70%;. $450.9- $114.00. e. 14.3 kcal 75. How many grams of sugar are required to make 400. mL of a 6.0% (wXV) solution of sugar? 3.. 0.24 g b. 1.5 g c. 6.0 g d. 6.7 g ’24 g 4.4.4 a . . W6 was... (a W 5: 4.
f I a if; wan; {$54000 (ywméx-ﬁimé) 2%? 76. Suppose that 0.36 moles of lithium carbonate, DECO}, are placed in a flask, and water is added
until the volume is 500 mL What is the molarity of this solution? 21- 0-072 M .T s W! 44142.10.
1). 0.18M Wig/(”£7 ° ”2.: 52.30%
@ 0.72 M
d. 1.4 M 3 g“, m {’9 9 fig" 003 1—m- o -- é... ...

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