Chapter 1

Question 1

The x-axis of the graph

Answer 1

Abscissa

Question 2

Adjective describing a substance from which all water has been removed

Answer 2

Anhydrous

Question 3

The number of grams containing Avogadro’s number of atoms

Answer 3

Atomic mass

Question 4

One in which an excess of standard reagent is added to react with analyte. Then the excess reagent is titrated with a second reagent or with a standard solution of analyte

Answer 4

Back titration

Question 5

One in which a solution containing all reagents except analyte is titrated. The volume of titrant needed should be subtracted from the volume needed to titrate unknown

Answer 5

Blank titration

Question 6

States how much solute do a container in a given volume or mass of solution or solvent

Answer 6

Concentration

Question 7

The mass per unit volume

Answer 7

Density

Question 8

One in which the analyte is treated with titrated and the volume of titrated required for complete reaction is measured

Answer 8

Direct titration

Question 9

A substance that dissolves into ions in solution

Answer 9

Electrolyte

Question 10

Point in a titration at which there is a sudden change in a physical property, such as indicator color, pH, conductivity, or absorbance. Used as a measure of the equivalence point

Answer 10

End point

Question 11

Point in a titration at which the quantity of titrant is exactly sufficient for stoichiometric reaction with the analyte

Answer 11

Equivalence point

Question 12

A description of how the solution was made by dissolving F moles per liter

Answer 12

Formal concentration

Question 13

The sum of atomic masses of atoms in the formula

Answer 13

Formula mass

Question 14

Chemical analysis based on weighing a final project

Answer 14

Gravimetric analysis

Question 15

A titration in which the mass of titrant is measured, instead of the volume. Titrant concentration is conveniently expressed as mol reagent/kg titrant solution; can be more accurate and precise than volumetric titrations

Answer 15

Gravimetric titration

Question 16

A compound having a physical property (usually color) that changes abruptly near the equivalence point of a chemical reaction

Answer 16

Indicator

Question 17

The volume of a cube that is 10 cm on each edge

Answer 17

Liter

Question 18

Concentration expressed as moles of substance per kilogram of solvent

Answer 18

Molality (m)

Question 19

The number of moles of a substance per liter or solution

Answer 19

Molarity (M)

Question 20

Avogadro’s number of particles (atoms, molecules, ions, etc)

Answer 20

Mole

Question 21

The sum of atomic masses of the atoms in the atoms in the molecule

Answer 21

Molecular mass

Question 22

The y-axis of the graph

Answer 22

Ordinate

Question 23

Mass of substance over mass of sample times 10^6

Answer 23

Parts per million (ppm)

Question 24

Mass of substance over mass of sample times 10^9

Answer 24

Parts per billion (ppb)

Question 25

A reagent that is pure enough and stable enough to be used directly after weighing. The entire mass is considered to be pure reagent

Answer 25

Primary standard

Question 26

The species created in a chemical reaction; appears on the right side of the chemical equation

Answer 26

Product

Question 27

The species consumed in a chemical reaction; appears on the left side of the chemical equation

Answer 27

Reactant

Question 28

A high-purity chemical generally suitable for use in quantitative analysis and meeting purity requirements set by organizations such as the American Chemical Society

Answer 28

Reagent grade chemical

Question 29

International system of units based on the meter, kilogram, second, ampere, kelvin, candela, mole, radian, and steradian

Answer 29

SI units

Question 30

A minor species in a solution

Answer 30

Solute

Question 31

A major species in a solution

Answer 31

Solvent

Question 32

Process of determining the concentration of a reagent by reaction with a known quantity of a second reagent

Answer 32

Standardization

Question 33

A solution whose composition is known by virtue of the way that it was made from a reagent of known purity or by virtue of its reaction with a known quantity or a standard reagent

Answer 33

Standard solution

Question 34

The calculation of quantities of substances involved in a chemical reaction

Answer 34

Stiochiometry

Question 35

Substance added to the analyte in a titration

Answer 35

Titrant

Question 36

A procedure in which one substance (titrant) is carefully added to another (analyte) until complete reaction has occurred. The quantity of titrant required for complete reaction tells how much analyte is present

Answer 36

Titration

Question 37

Difference between the observed end point and the true equivalence point in a titration

Answer 37

Titration error

Question 38

Chemical analysis of very low levels of analyte, typically ppm and lower

Answer 38

Trace analysis

Question 39

(Volume of solute/volume of solution) x 100

Answer 39

Volume percent

Question 40

A technique in which the volume of material needed to react with the analyte is measured

Answer 40

Volumetric analysis

Question 41

(Mass of solute/mass of solution) x 100

Answer 41

Weight percent