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Chemistry 121
Chapter 1-The Ohio State University
34
Chemistry
Undergraduate 1
06/23/2011
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Term
km → mile conversion
 Definition
1 km = 2.56 miles
Term
mile → foot conversion
 Definition
1 mile = 5,280 feet
Term
pound → gram conversion
 Definition
1 pound = 453.6 grams
Term
inch → centimeter conversion
 Definition
1 inch = 2.54 cm
Term
quart → liter conversion
 Definition
1 quart = 0.946 L
Term
precision vs. accuracy
 Definition

precision-how closely one's measurements agree with one another

 

accuracy-how closely one's measurements agree with the actual value
Term
Rules for multiplication and division of significant figures:
 Definition
The answer contains the same number of significant figures as the measurement with the fewest number of significant figures
Term
Rules for addition and subtraction of significant figures
 Definition
Answer has the same number of decimal places as the measurement with the fewest decimal places
Term
Rules for significant figures:
 Definition

1. Zeros between non-zero digits are always significant

 

2. Zeros at the beginning of a number are never significant

 

3. Zeros at the end of a number are significant if the number contains a decimal point
Term
Density
 Definition
mass/volume
Term
mL = ____?
 Definition
cm3
Term
Liter = _____?
 Definition
dm3
Term
Formula for volume of a cube:
 Definition
(length)3
Term
Formula for celcius → fahrenheit
 Definition
F = 9/5 (celcius) + 32
Term
Formula for fahrenheit → celcius
 Definition
C = 5/9 (Fahrenheit-32)
Term
Formula for celcius → Kelvin
 Definition
K = celcius + 273.15
Term
SI unit for luminous intensity
 Definition
candela (cd)
Term
SI unit for electric current
 Definition
Ampere (A)
Term
SI unit for the amount of a substance
 Definition
mole (mol)
Term
SI unit for temperature
 Definition
Kelvin (K)
Term
SI unit of time
 Definition
second (s)
Term
SI unit of length
 Definition
meter (m)
Term
SI unit of mass
 Definition
kilogram (kg)
Term
Giga-
 Definition

abbreviation: G

meaning:109
Term
Mega-
 Definition

abbreviation: M

meaning: 106
Term
Kilo-
 Definition

abbreviation: k

meaning: 103
Term
Deca-
 Definition

abbreviation: dec

meaning: 101
Term
Deci-
 Definition

abbreviation: d

meaning: 10-1
Term
Centi-
 Definition

abbreviation: c

meaning: 10-2
Term
Milli-
 Definition

abbreviation: m

meaning: 10-3
Term
Micro-
 Definition

abbreviation: μ

meaning: 10-6
Term
Nano-
 Definition

abbreviation:n

meaning: 10-9
Term
Pico-
 Definition

abbreviation: p

meaning: 10-12
Term
Femto-
 Definition

abbreviation: f

meaning: 10-15
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