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Measurement
Midterm Exam
14
Chemistry
Undergraduate 1
02/27/2010

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Term
Aliquot
Definition
portion
Term
aliquot factor
Definition
Term
analyte
Definition
the substance being analyzed
Term
analytical concentration
Definition
the molarity of a substance if it did not change its chemical form on being dissolved. it represents the total number of moles of substance dissolved in a liter of solution, regardless of any reactions that take place when the solute is dissolved. (also called formal concentration)
Term
equilibrium concentration
Definition
Term
density
Definition
mass per unit volume
Term
molarity
Definition
a measure of concentration equal to the number of moles of solute per liter of solution
Term
molecular weight
Definition
Term
parts per billion
Definition
an expression of concentration demoting nanograms of solute per gram of solution
Term
parts per million
Definition
an expression of concentration denoting micrograms of solute per gram of solution
Term
weight percent
Definition
mass of solute/mass of solution X 100
Term
qualitative analysis
Definition
the process of determining the identity of the constituents of a substance
Term
quantitative analysis
Definition
the process of measuring how much of a constituent is present in a substance
Term
gravimetric analysis
Definition
any analytical method that relies on measuring the mass of a substance (such as a precipitate) to complete the analysis
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