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National Chemistry Olympiad
2008 National Chemistry Olympiad
8
2008 USNCO Local #8: Moles of ions
2008 USNCO Local #8: Moles of ions
Source:
December 3, 2012
Problem Statement
How many moles of ions are present in
250
250
250
mL of a
4.4
4.4
4.4
M solution of sodium sulfate?
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1.1
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2.2
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3.3
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{ <span class='latex-bold'>(A)</span>\hspace{.05in}1.1 \qquad<span class='latex-bold'>(B)</span>\hspace{.05in}2.2 \qquad<span class='latex-bold'>(C)</span>\hspace{.05in}3.3 \qquad<span class='latex-bold'>(D)</span>\hspace{.05in}13}\qquad
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1.1
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2.2
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3.3
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13
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