Experiment4 development of an equation
Haitian sun
Chemistry 121
10/28/2010
T.A. – kelsey
Instructor
qualitative tests for ions are needed by comparing two different phenomena
in 2
sample ,forming dark purple precipitate in order to test iodide .and in the second
process one substance will react with lead cation by forming a dark precipitate ,a
metal sulfide.
Purpose: The purpose of this experiment is to determine the formula for the
ionic solid formed in a reaction and to write the chemical equation for the
reaction.
Procedure: Procedure: refer to pages 32-33 of General Chemistry volume 1
by Judith Casey & Robert Tatz
Report Sheet: See attached report sheet.
Conclusion:
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in this experiment ,the way how to determine the formula of ionic solid was
studied.
With the kinds and amount of ions in solution, we can get the coefficient of
the equation. A new kind of heating method, water bath, is studied.
For part a ,it is not nitrate anion but iodide anion that will react with
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- Spring '10
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- Chemistry, pH, Ion, dark precipitate, dark purple precipitate, kelsey Instructor
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