chemistry unit 3
liter
non-SI unit of volume
temperature
measure of how hot or cold an object is
kilogram
SI base unit of mass
scientific notation
a method of expressing numbers as a product of a coefficient and a power of 10
scientific notation
a method of expression numbers as a product of a coefficient and a power of 10
measurement
a quantity that has both a number and a unit
conversion factor
a ratio of equivalent measurements
experimental value
a value determined in the laboratory
dimensional analysis
a way to analyze and solve problems, using the units of the measurements
accuracy
closeness of a measurement to the true value
error
difference between the experimental value and the accepted value
significant figures
digits in a measurement that are known plus one that is estimated
weight
force that measures the pull of gravity on a given mass
gram
mass unit commonly used in chemistry
precision
measure of how close a series of measurements are to one another
calorie
quantity of heat that raises the temperature of 1 g of pure water by 1 degree Celsius
International System of Units
standardized system of measurement based on the metric system
Kelvin scale
temperature scale on which the freezing point of water is 273.15 degrees and its boiling point is 373.15
Celsius scale
temperature scale on which water freezes at 0 degrees and boils at 100
meter
the SI base unit of length
joule
the SI unit of energy
meter
the SI unit of length
energy
the capacity to do work or to produce heat
temperature
the degree of hotness or coldness of an object
kilogram
the mass of 1 L of water at 4 degrees Celsius
density
the ratio of the mass of an object to its volume (d= m/v)
absolute zero
zero point on the Kelvin scale equal to -273.15 degrees Celsius