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Vocabulary- Week 2

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Vocabulary- Week 2 From Chemistry Book dimensional Analysis base Unit derived Unit Kelvin Celsius From Agenda . animadversion credence feckless cavort – PowerPoint PPT presentation

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Title: 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!
3
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

7
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
8
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
9
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

10
How to use dimensional analysis
  • 1.2 mg ? g

11
Convert
  • 1.2 mg ? g
  • 6.3 cm ? mm

12
  • 5.12 m ? cm
  • 12 L ? g

13
  • 6.11 mL ? L
  • 1km ? mm

14
  • 1.03 kg ? cg
  • 0.003 g ? kg

15
  • 428 cm3 ? mL
  • 12 L ? g

16
  • 4 Liters/hour ? mL/min
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