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Q: chemistry ( Answered 4 out of 5 stars

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Question

Subject: chemistry
Category: Science > Chemistry
Asked by: teatea-ga
List Price: $2.00

Posted: 06 Jul 2003 16:13 PDT
Expires: 05 Aug 2003 16:13 PDT
Question ID: 225816

How many molecules of sulfur dioxide are present in 1.60 moles of sulfur dioxide?
a. 9.63 x 10 23
b. 102.1 x 10 23
c. 7.62 x 10 23 
d. 3.76 x 10 23

Answer

Subject: Re: chemistry
Answered By: synarchy-ga on 06 Jul 2003 16:19 PDT
Rated: 4 out of 5 stars

To calculate the number of molecules, multiply the number of moles by
Avogadro's number = 6.022 * 10^23.  So, 1.60 * 6.022 *10^23 = 9.63 *
10 ^23


http://gemini.tntech.edu/~tfurtsch/scihist/avogadro.htm

teatea-ga rated this answer: 4 out of 5 stars

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