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ÞÏíã 07-10-2011, 03:45 PM

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ÊÇÑíÎ ÇáÊÓÌíá: Jul 2011
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ÇáãÓÊæì: ÇáËÇäí
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What information would you need to calculate the average atomic mass of an element?




How many molecules of ethane (C2H6) are present in 0.334 g of C2H6?

ÇáÊÚÏíá ÇáÃÎíÑ Êã ÈæÇÓØÉ ÓÇÚÊí ÎÑÈÇäå ; 07-10-2011 ÇáÓÇÚÉ 03:48 PM.
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