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The Sequence Of Chemical Reactions - Online Term Paper

The Sequence Of Chemical Reactions

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INTRODUCTION This experiment was to recover the most amount of copper after it
is subjected to a sequence of reactions. The copper is originally in solid
form, but the reactions will turn it into free Cu+2 ions floating in solution.
The ions will then be regrouped to form solid copper once again. During this
process, however, some of the Cu+2 ions may be lost. The copper will subjected
to changes in pH and heat. These steps were responsible for the breakdown and
reconstruction of the copper. The percent of copper retrieved will reflect the
skill with which the reactions were administered.

EXPERIMENTAL On an analytical balance, measure the mass of the copper while in
the ...

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that it is slightly basic. Fill the
beaker with up to 100 mL mark with distilled water. Heat the solution and allow
it to boil for 5 minutes. Prepare a squirt bottle with hot water. Filter the
solution and rinse the beaker with the hot water. Rinse the filter cake with
hot distilled water. Transfer the filter paper into a clean beaker. Add ~ 10
mL of 3M sulfuric acid to the beaker in order to dissolve the filtrate. Remove
and rinse the filter paper. Now add ~ 0.35 g of zinc powder to the solution and
stir until the solution becomes clear. Dissolve the excess zinc with more
sulfuric acid. Decant the liquid with a stirring rod, retaining only the copper.
Rinse the copper with distilled water and steam dry. Weigh the mass.

DATA/RESULTS initial mass of copper (g) 0.319 final mass of
copper (g) 0.305 % recovery = (final mass/initial mass) x 100
95.6

OBSERVATIONS -between steps 1 through 4 the solution is blue. -between steps 5
through 8 the solution is dark brown. ...

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The Sequence Of Chemical Reactions. (2005, February 15). Retrieved April 19, 2024, from http://www.essayworld.com/essays/The-Sequence-Of-Chemical-Reactions/22320

"The Sequence Of Chemical Reactions." Essayworld.com. Essayworld.com, 15 Feb. 2005. Web. 19 Apr. 2024. <http://www.essayworld.com/essays/The-Sequence-Of-Chemical-Reactions/22320>

"The Sequence Of Chemical Reactions." Essayworld.com. February 15, 2005. Accessed April 19, 2024. http://www.essayworld.com/essays/The-Sequence-Of-Chemical-Reactions/22320.

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PAPER DETAILS

Added: 2/15/2005 09:36:50 PM
Category: Science & Nature
Type: Premium Paper
Words: 590
Pages: 3

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