Chemistry Measurements & SI Units

Unit for Amount

mole (mol)

Unit for mass

grams (g), milligrams (mg), kilogram (kg)

Unit for volume

cubic meter (m^3); decimeter (dm^3); centimeter (cm^3)

Unit for time

second (s), minutes (min), hours (hr)

Unit for temperature

Celsius (C), Kelvin (K)

Unit for heat energy

joule (J)

Unit for length

meter (m), centimeter (cm), millimeter (mm), nanometer (nm)

Mole (defined)

the SI base unit used to measure the amount of a substance

Mass (defined)

A measure of the amount of matter in an object

Volume (defined)

The amount of space an object takes up

Temperature (defined)

A measure of the average kinetic energy of particles

Heat (defined)

form of energy that is transferred between particles

Units for Concentration of a solution

moles per cubic decimeter (mol dm^-3)

Terms sometimes used (casually) to describe a solution's concentration

Molarity (M)

pH

a measure of the potential hydrogen concentration of a substance / 1-14 scale / unitless

Unit for electrical current

ampere (A)

Unit for electrical potential difference

volts (V)

Conductivity (defined)

a material's capacity to allow electric current or charge to flow through it

Unit for conductivity

microsiemens per centimeter

symbol for moles

n