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USA Physics and Chemistry Contests
National Chemistry Olympiad
2010 National Chemistry Olympiad
13
13
Part of
2010 National Chemistry Olympiad
Problems
(1)
2010 USNCO Local #13: Gas Law
Source:
11/21/2012
A
2.00
L
2.00 \text{L}
2.00
L
balloon at
20.
0
∘
C
20.0^{\circ} \text{C}
20.
0
∘
C
and
745
mmHg
745 \text{mmHg}
745
mmHg
floats to an altitude where the temperature is
10.
0
∘
C
10.0^{\circ} \text{C}
10.
0
∘
C
and the air pressure is
700
mmHg
700 \text{mmHg}
700
mmHg
. What is the new volume of the balloon?
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0.94
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1.06
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2.06
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D
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2.20
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<span class='latex-bold'>(A)</span>\hspace{.05in}0.94 \text{L}\qquad<span class='latex-bold'>(B)</span>\hspace{.05in}1.06 \text{L}\qquad<span class='latex-bold'>(C)</span>\hspace{.05in}2.06 \text{L}\qquad<span class='latex-bold'>(D)</span>\hspace{.05in}2.20 \text{L}\qquad
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0.94
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<
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B
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1.06
L
<
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C
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2.06
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D
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2.20
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