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<div class="moz-cite-prefix">On 09/27/2015 09:37 PM, wrote:<br>
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cite="mid:14a4f01913734816aa9cb02eba9fad42@superman.MercerU.local"
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<div dir="ltr">Hi Dr. Pounds,
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<div>I am having trouble trying to figure out how to calculate
the mass of impure KHP. How exactly am I supposed to find this
value?<br clear="all">
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<div>Thanks,</div>
-- <br>
<div class="gmail_signature">
<br>
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<br>
Remmeber, in this reaction the sodium hydroxide reacts with the KHP
on a 1:1 basis. With that said, compute the moles of NaOH by
multiplying the molarity you determined two weeks ago by the volume
of NaOH you used in liters. This is equal to the number of moles
of KHP. Multiply the moles of KHP by the molar mass of KHP to get
the mass of pure KHP.<br>
<br>
Dividing the mass of pure KHP by the mass of the sample should then
give the %KHP in the sample.<br>
<br>
<pre class="moz-signature" cols="72">--
Andrew J. Pounds, Ph.D. (<a class="moz-txt-link-abbreviated" href="mailto:pounds_aj@mercer.edu">pounds_aj@mercer.edu</a>)
Professor of Chemistry and Computer Science
Mercer University, Macon, GA 31207 (478) 301-5627
<a class="moz-txt-link-freetext" href="http://faculty.mercer.edu/pounds_aj">http://faculty.mercer.edu/pounds_aj</a>
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