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# MSC 180 - Water Analysis - PowerPoint PPT Presentation

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

Instructor: Jacqui Jenkins

Office: S204D

Email: [email protected]

Phone: 362-7405

• Safety Requirements

• Eyewash & Shower

• First Aid Kit

• Fire Blanket

• Fire Extinguisher

• MSDS

• Material Safety Data Sheets

• Decimal system of measurement

• Base of 10

• History

• France, 1791

• US, Liberia, and Myanmar (Burma)

• http://lamar.colostate.edu/~hillger/

• 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

• Length

• Meter

• Weight

• Gram

• Volume

• Liter

• 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

• 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

• 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

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

2 snake eyes = 1 paradise

10¯6 phones = 1 microphone

106 phones = 1 megaphone

10¯2 mental = 1 centimental

10¯1 mate = 1 decimate

10¯12 boos = 1 picoboo

• 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

• Temperature

• Celsius (°C)

• Kelvin (K)

• Absolute zero

• 0 K

• -273.15 °C

• K = °C + 273

• °C = 5/9(°F - 32)

• °F = 9/5(°C +32)

• Density

• Mass per unit volume

• D = M/V

• Mass in grams

• Volume in cubic centimeters

• g/cm3

• 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

• Bunsen burners

• Glass Tubing

• Cutting

• Fire Polishing

• Bending

• Inserting into stoppers

• Transfer of Liquids

• Correct handling of glass stoppers

• Pouring liquids from beakers

• Loosening stuck stopcocks and stoppers

• Weighing/Balances

• Most important tool in a chemistry lab

• Used to determine the mass of an object

• Triple-beam balance

• Analytical balance

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

• 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?