1st Quiz Flashcards
is the concentration of a particular
chemical species.
Molarity
a substance’s total concentration
without regard to its specific chemical form
FORMALITY
defines concentration in terms of an
equivalent, which is the amount of one chemical species
that reacts stoichiometrically with another chemical
species.
Normality
is used in thermodynamic calculations
where a temperature independent unit of
concentration is needed. It is based on the volume of
solution that contains the solute.
Molality
are ratios
that give the grams of solute in, respectively, one million
and one billion grams of sample.
PPM & PPB
any chemical or physical principle that we can use to study an
analyte.
Technique
the application of a technique for a specific analyte in a specific matrix.
Method
a set of written directions that tell us how to apply a method to a
particular sample, including information on how to collect the sample, how to
handle interferents, and how to validate results.
Procedure
a set of stringent guidelines that specify a procedure that an analyst
must follow if an agency is to accept the results. Protocols are common when the
result of an analysis supports or defines public policy.
Protocol
provides chemical or physical information about a sample.
Analysis
the component in the sample of interest
Anlyte
the remainder of the sample
Matrix
A technique that responds to the absolute amount of analyte is
Total analysis technique
how closely the result of an experiment agrees with the “true” or
expected result. We can express accuracy as an absolute error
Accuracy
measure of this variability.
Precision
