Vocabulary- Week 2

1
Vocabulary- Week 2

• From Chemistry Book
• dimensional Analysis
• base Unit
• derived Unit
• Kelvin
• Celsius

• From Agenda.
• animadversion
• credence
• feckless
• cavort
• evince

2
Quiz Review

• Lab Safety
• Lab Equipment
• Mass of water in beaker
• What equipment is used for specifically
• Mass vs Weight
• Scientific Method
• Qualitative vs Quantitative
• Variables

Quiz on Tuesday!
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Metric System-Chapter 2
Time Seconds s
Length Meter m
Mass Kilogram kg
Temperature Kelvin K
Amount of substance Mole mol

• Base Units
• Defined unit of measurements that is based on an
  object or event in the physical world

4

• Derived unit
• Units that are defined as a combination of base
  units

Volume- (length x width x height) Liter L
Density Grams per milliliter g/mL
5
Metric System

• Prefixes

giga G 1 000 000 000 109
mega M 1 000 000 106
kilo k 1000 103
deci d 1/10 10-1
centi c 1/100 10-2
milli m 1/1000 10-3
micro µ 1/1 000 000 10-6
nano n 1/1 000 000 000 10-9
pico p 1/1 000 000 000 000 10-12
6
Things you should know memorize

• 1 kilo 1000 units
• 1 unit 100 centi
• 1 unit 1000 milli
• 1 centi 10 milli
• 1 mL 1 cm3

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A phrase to help you remember

• King
• Henry
• Died
• Un-expectantly
• Drinking
• Chocolate
• Milk

K H D U D C M
Kilo Hecta Deca Unit (L, m, s, g) Deci Centi Milli
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Metric Conversions II
1 m _____cm 1 g _____ cg 1 L _____ cL
1 cm _____mm 1 cg _____mg 1 cL _____mL
1 km _____m 1 kg _____g 1 kL _____L
1 m _____mm 1 g _____mg 1 L _____mL
1 g _____ mL 1 cm3 _____ g 1 mL _____ g
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You should also know how to solve problems using
dimensional analysis

• Dimensional Analysis
• Method of problem solving that focuses on the
  units uses conversion factors
• The same thing as multiplying by a factor of one

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How to use dimensional analysis

• 1.2 mg ? g

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Convert

• 1.2 mg ? g

• 6.3 cm ? mm

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• 5.12 m ? cm

• 12 L ? g

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• 6.11 mL ? L

• 1km ? mm

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• 1.03 kg ? cg

• 0.003 g ? kg

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• 428 cm3 ? mL

• 12 L ? g

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• 4 Liters/hour ? mL/min