chapter 3
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Anonymous
ID:
38846
Filename:
chapter 3
Updated:
2010-09-30 21:56:24
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chemistry
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chapter 3 chem
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the zero point on the Kelvin temp scale, equivalent to -273.15 C
absolute zero
quantity used by general agreement of the scientific community
acepted value
closeness of a measurement to the true value of what is being measured
accuracy
quantity of heat needed to raise the temp of 1 C of pure water
calorie
temp scale on which the freezing point of water is 0C and boiling is 100C
Celcius scale
ratio of equivalent measurements used to convert a quantity from one unit to another
conversion factor
ratio of the mass of an object to its volume
density
tech of a problem solving that uses the units that are part of a measurement to help solve the problem
dimensional analysis
capacity for doing work or producing heat
energy
diff between the sccepted value and the experimental value
error
quantitive value is used to test the hypothesis
experimental value
metric mass unit equal to the mass of lcm3 of water @ 4 C
gram
revised version of the metric system adopted by international agreement in 1960
iternational system of units
the SI unit of energy
joule
temp scale in which the freezing point of water is 273K and boiling point is 373K
Kelvin scale
mass of 1L of water @ 4C
kilogram
volume of a cube measuring 10 cm on each edge (1000 cm3)
liter
quantity desciption that includes both a # and unit
measurement
base unit of length in SI
meter
percent that a measured value
percent error
describes the closeness or reproductively of a set of measurements taken under the same conditions
precision
expression of #s in the form mx10n where m is equal to or greater than 1 and less than 10 and n is an integer
scientific notation
all the digits that can be known precisely in a measurement, plus a last estimated digit
significant figures
measure of the average kinetic energy of particles in matter
temperate
force that measures the pull of gravity on a given mass
weight