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From the mass of filtered AgCl and the mass of the silver alloy sample, calculate the mass of silver in the al

Sep 23, 2007 by Molly | Posted in Chemistry

 From the collection of AgCl filtered and sample collection of silver alloy, to calculate the raise money in the allloy.

grams AgCl =. 42
Silver Alloy =.

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 I assign the 0.37 grams of silver alloy was completely dissolved in a solution HNO3/H2SO4 and then the money has been accelerated as a chloride, filtered, rinsed and dried to obtain 0.42 grams of force. You'll need the atomic weights:

molar amount of AgCl is 143.32 g / mol http://en.wikipedia.

How do you calculate the percent of silver in this alloy?

Aug 20, 2009 by LUV | Posted in Chemistry

 A silver-copper alloy has a quantity of 0.1264 g. When the alloy is dissolved in nitric acid and the silver precipitated as silver chloride, the impulsive had a mass of 0.1375 g.

How bang on do I start the problem?

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 Keep one's wits about one One
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You start with AgN03. Find out its molar John.

Ag ........ 107
N.............14
O3=3*16=.48
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Total ......169

Step 2
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Count the number of moles 0.1375 grams of Silver Nitrate.

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31.12.69

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Source: The Canberra Times

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