Shared Flashcard Set

Details

Prologue, Chapter 1, and Chapter 2
From the book General, Organic, and Biological Chemistry: Structures of Life. Karen C. Timberlake. Main points. Possibly may through in some elements with their symbols too.
26
Chemistry
Undergraduate 1
10/02/2011

Additional Chemistry Flashcards

 


 

Cards

Term
Definition of Chemistry
Definition
Science that seeks to understand what matter does at an atomic and molecular level.
Term
Definition of Matter
Definition
Anything that has mass and occupies space.
Term
Definition of Experiment
Definition
collection of data under controlled or defined conditions. Used to validate hypothesis
Term
Definition of Chemical
Definition
a substance that always has the same properties and composition where ever it is found.
Term
Definition of Hypothesis
Definition
Educated guess explaining observations.
Term
Definition of Theory
Definition
Tested explanation. Many experiments have supported theories.
Term
Definition of Law
Definition
summary of observation.
Combines all past observations.
Term
Prefix:
Mega (M)
Definition
Value: 10^6, or 1 million units
Term
Prefix:
kilo (k)
Definition
10^3 or 1000 units
Term
Base unit
Definition
can be in grams (g), meter (m), liters (L), seconds (s), etc.
One unit.
Term
deci- (d)
Definition
10^-1
or
1/10 units (0.1)
Term
centi-
(c)
Definition
10^-2,
or
1/100, or 0.01 units
Term
milli-
(m)
Definition
10^-3
or
1/1000
or
0.001
Term
micro- (weird u thingy, called mew)
Definition
10^-6
or
1/1000000
or
.000001
Term
nano-
(n)
Definition
10^-9
1 billionth of a unit
Term
pico-
(p)
Definition
10^-12,
or
1 trillionth of a unit
Term
Difference between mass and weight
Definition
weight takes into account the force of gravity. Mass is just the object regardless of gravitational pull
Term
Exact numbers vs measured numbers
Definition
Exact: defined or counted.
Measured: has some uncertainty
Term
Significant Digits
Definition
all digits we can read plus or minus best guess digit. applied to measure numbers only.

All non-zero numbers are significant.
zeros at end of number are significant.
zeros preceding non-zero number are NOT significant
Term
To calculate density
Definition
D=M/V
Term
Law of conservation
Definition
Matter cannot be created nor destroyed.
Mass begin with = mass end with
Term
Definition of energy
Definition
ability to supply heat and/or do work.
Term
Kinetic energy
Definition
energy due to motion of particles
temp effects this.
Term
potential energy
Definition
due to position. Stored in bonds.
Term
conversions of energy units
Definition
1 calorie = 4.184 joules
1 kcal = 1000 cal
1 kJ = 1000 J
Term
Temperature conversions
Definition
Fahrenheit = (1.8 * Celsius)+32
Celsius = Kelvin - 273
Supporting users have an ad free experience!