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MSC 180 - Water Analysis. Instructor: Jacqui Jenkins Office: S204D Email: [email protected] Phone: 362-7405. Laboratory Safety. Safety Requirements. Safety Equipment. Eyewash & Shower First Aid Kit. Fire & Fire Safety. Fire Blanket Fire Extinguisher. Safety Equipment. MSDS

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msc 180 water analysis

MSC 180 - Water Analysis

Instructor: Jacqui Jenkins

Office: S204D

Email: [email protected]

Phone: 362-7405

laboratory safety
Laboratory Safety
  • Safety Requirements
safety equipment
Safety Equipment
  • Eyewash & Shower
  • First Aid Kit
fire fire safety
Fire & Fire Safety
  • Fire Blanket
  • Fire Extinguisher
safety equipment1
Safety Equipment
  • MSDS
    • Material Safety Data Sheets
the metric system
The Metric System
  • Decimal system of measurement
  • Base of 10
  • History
    • France, 1791
    • US, Liberia, and Myanmar (Burma)
  • http://lamar.colostate.edu/~hillger/
the metric system prefixes
The Metric System - Prefixes
  • micro = µ = one-millionth = 10-6
  • milli = m = one-thousandth = 10-3
  • centi = c = one-hundredth = 10-2
  • deci = d = one-tenth = 10-1
  • deka = dk = ten times = 101
  • hecto = h = hundred times = 102
  • kilo = k = thousand times = 103
  • mega = M = million times = 106
the metric system1
The Metric System
  • Length
    • Meter
  • Weight
    • Gram
  • Volume
    • Liter
the metric system length
The Metric System - Length
  • 1 micrometer (µm) = 0.000001 meter
  • 1 millimeter (mm) = 0.001 meter
  • 1 centimeter (cm) = 0.01 meter
  • 1 decimeter (dm) = 0.1 meter
  • 1 dekameter (dkm) = 10 meters
  • 1 hectometer (hm) = 100 meters
  • 1 kilometer (km) = 1000 meters
the metric system weight mass
The Metric System – Weight (Mass)
  • 1 microgram (µg) = 0.000001 gram
  • 1 milligram (mg) = 0.001 gram
  • 1 centigram (cg) = 0.01 gram
  • 1 decigram (dg) = 0.1 gram
  • 1 dekagram (dkg) = 10 grams
  • 1 hectogram (hg) = 100 grams
  • 1 kilogram (kg) = 1000 grams
the metric system volume
The Metric System - Volume
  • 1 microliter (µL) = 0.000001 liter
  • 1 milliliter (mL) = 0.001 liter
  • 1 centiliter (cL) = 0.01 liter
  • 1 deciliter (dL) = 0.1 liter
  • 1 dekaliter (dkL) = 10 liters
  • 1 hectoliter (hL) = 100 liters
  • 1 kiloliter (kL) = 1000 liters
slide13
1012 microphones = 1 megaphone

106 bicycles = 2 megacycles

2000 mockingbirds = 2 kilomockingbirds

10 cards = 1 decacards

10¯6 fish = 1 microfiche

454 graham crackers = 1 pound cake

1012 pins = 1 terrapin

10 rations = 1 decoration

10 millipedes = 1 centipede

3 1/3 tridents = 1 decadent

10 monologs = 5 dialogues

2 monograms = 1 diagram

8 nickels = 2 paradigms

2 snake eyes = 1 paradise

2 wharves = 1 paradox

10¯6 phones = 1 microphone

106 phones = 1 megaphone

10¯2 mental = 1 centimental

10¯1 mate = 1 decimate

10¯12 boos = 1 picoboo

conversion
Conversion
  • Metric English Equivalents
    • 1 cm = 0.3937 in.
    • 1 m = 3.281 ft = 39.37 in.
    • 1 km = 0.6214 mile
    • 1 L = 0.2646 gal
    • 1 kg = 2.204 lbs
the metric system2
The Metric System
  • Temperature
    • Celsius (°C)
    • Kelvin (K)
  • Absolute zero
    • 0 K
    • -273.15 °C
conversion1
Conversion
  • K = °C + 273
  • °C = 5/9(°F - 32)
  • °F = 9/5(°C +32)
the metric system3
The Metric System
  • Density
    • Mass per unit volume
    • D = M/V
    • Mass in grams
    • Volume in cubic centimeters
    • g/cm3
lab procedures
Lab Procedures
  • Recording Data/Lab Notebooks
    • Ink
    • Never rip out pages
    • Never erase data; cross out mistakes
    • Record all information, no matter how trivial
    • Be specific
    • Check all calculations
    • And, obviously, BE NEAT
lab procedures1
Lab Procedures
  • Bunsen burners
lab procedures2
Lab Procedures
  • Glass Tubing
    • Cutting
    • Fire Polishing
    • Bending
    • Inserting into stoppers
lab procedures3
Lab Procedures
  • Transfer of Liquids
    • Correct handling of glass stoppers
    • Pouring liquids from beakers
lab procedures4
Lab Procedures
  • Loosening stuck stopcocks and stoppers
lab procedures5
Lab Procedures
  • Weighing/Balances
    • Most important tool in a chemistry lab
    • Used to determine the mass of an object
    • Triple-beam balance
    • Analytical balance
lab procedures6
Precision

Reproducibility

Check by repeated measurements

Poor precision results from poor techniques

Accuracy

Correctness

Check by using a different method

Poor accuracy results from procedural or equipment flaws

Lab Procedures
labware
Labware
  • Section 2 of the handbook
  • These will be displayed for the rest of the week, then returned to their respective places for the rest of the semester
    • What is it?
    • What’s it used for?
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