Question

Over the course of the semester, we studied several techniques (spectrophotometry, acid-base titrations, redox experiments) to answer questions related to quantification and identification of compounds, kinetics of chemical reactions,and equilibrium constants. With some background research, write a researchable question that could be answered with one or more of the techniques used during the semester.Write a research plan to answer the question. The plan does not have to be a detailed step by step procedure, but an overview of the experiment including controls and how you would “work up” the data to answer your question.

The question I would like is...how to determine the quanity in compounds? But to me it seems like question is not really a research question.

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Answer 1

Chemical Method for Quantitative analysis are

A) For metals

1) Gravimetric analysis

2) Comlexometric titrations

3) Redox Titrations.

B) Physical method:

1) Chromatography.

2) Atomic Absorption Spectroscopy.

3) Flame Emssion Spectroscopy.

Of these methods Gravimetry has following sub methods:

1) Methods of Gravimetry:

a) Precipitation gravimetry : A gravimetric method in which the signal is the mass of a precipitate.
b) Electrogravimetry : A gravimetric method in which the signal is the mass of an electrodeposit on
the cathode or anode in an electrochemical cell.
c) Volatilization gravimetry : A gravimetric method in which the loss of a volatile species gives rise to the
signal.
d) Particulate gravimetry : A gravimetric method in which the mass of a particulate analyte is determined
following its separation from its matrix.
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a) Precipitation Gravimetry

b) Electrogravimetry

Gravimetry: