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calcium carbonate in your dry unknown samples.
Please enter your room number, locker series and locker number which is the hyphenated
numbers embossed on your locker. For example, if the hyphenated numbers read, 10686-24, your room number is 1068. 29 30 Introduction to Inorganic
In this experiment you will be introduced in an abbreviated way to systematic methods
that chemists have traditionally used to identify the cationic constituents of a mixture. In
most such schemes, including this one, a sequence of precipitating agents is used to
separate the original mixture into smaller groups, each of which may contain more than
one constituent. Each of the smaller groups is then examined further.
The elements that you will be focusing on are eight of the twelve metallic constituents of
the third long row of the periodic table: K, Ca, Cr, Mn, Fe, Co, and Zn. You will first
encounter them as 0.05 M aqueous solutions of nitrate salts. During the course of the
experiment some of these elements may change their oxidation states one or more times.
The scheme you will be us...
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This note was uploaded on 04/09/2013 for the course CHE CHE 2C taught by Professor Nasiri during the Spring '07 term at UC Davis.
- Spring '07