Fundamental of Chemistry
This presentation is the property of its rightful owner.
Sponsored Links
1 / 19

Some Fundamental Tools of Chemistry PowerPoint PPT Presentation


  • 67 Views
  • Uploaded on
  • Presentation posted in: General

Fundamental of Chemistry Fourth Edition Frank Brescia John Arents Herbert Meislich Amos Turk The City College of the City University of New York Academic Press (1980) A Subsidiary of Harcourt Brace Javanovich, Publishers New York London Toronto Sidney San Francisco No Buku 540.1/Bre/f.

Download Presentation

Some Fundamental Tools of Chemistry

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Some fundamental tools of chemistry

Fundamental of ChemistryFourth Edition Frank BresciaJohn ArentsHerbert MeislichAmos TurkThe City College of the City University of New YorkAcademic Press (1980)A Subsidiary of Harcourt Brace Javanovich, PublishersNew York London Toronto Sidney San FranciscoNo Buku540.1/Bre/f


Some fundamental tools of chemistry

Some Fundamental Tools of Chemistry

  • Scientific Methods for Chemists

  • Measurement and the International System of Units

  • Significant Figures in Measurement

  • Conversion Factors

  • Precision and Accuracy

  • Pure Substances

  • Self-test

  • Additional Problems


Objects

Objects

  • Objects are most of items whose shape or construction has some particular function or some recognizeble identity, for example:

  • A chair to sit on

  • A cup to drink from

  • A book to read

  • A rock that is interesting to look at


Materials bahan

Materials (Bahan)

  • Slivers of wood is no longer a chair

  • Granules of porcelain is no longer a cup

  • A paper is no longer a book

  • Coarse sand is no longer a rock

  • Wood, porcelain, paper, sand – you no longer call them objects;

  • They are materials


Matter and substance

Matter and Substance

  • Materials are samples of matter, which is simply the stuff of which the universe consists.

  • a substance is a material that has a definite composition.

  • Sugar is a sample of substance

  • The chemists often thinks of a substance as being a pure material.


Chemistry

Chemistry

  • Chemistry is the study of the properties and transformation of materials


Material classification

Material Classification

  • Shredded books (1)

  • Shredded newspapers (2)

  • Shredded milk cartons (3)

  • (1) (2) and (3) come from same materials: paper

  • They all can burn (properties)

  • (1) (2) and (3) are combustible matter


Material classification1

Material Classification

  • Porcelaine

  • Sand

  • They are non combustible matter (properties)


Scientific method

Scientific Method

  • Steps:

  • “Pure”/unprejudiced observation

  • Hypothesis

  • Theory

  • Law


Element unsur

Element (Unsur)

  • Kayu dipanaskan  tersisa arang = karbon

  • Kertas dipanaskan  tersisa arang = karbon

  • Gula dipanaskan  tersisa arang = karbon

  • Karbon dibakar lagi  tetap karbon

  • Karbon tak dapat diuraikan lagi (nondecomposable)

  • Substance yang tak dapat diuraikan lagi disebut element (unsur)


Element unsur name background

Element (Unsur) Name Background

  • Uranium (mengambilnama Planet Uranus)

  • Mercury (mengambilnama Planet Mercury)

  • Curium ( Marie Curie)

  • Einsteinium ( Albert Einstein)

  • Fermium ( Enrico Fermi)

  • Francium ( France)

  • Germanium ( Germany)

  • Polonium ( Poland)


Element unsur name background1

Element (Unsur) Name Background

  • Berkelium (Berkeley, California)

  • Yttrium, Ytterbium, Erbium (Ytterby, Sweden)

  • Europium ( Europe)

  • Xenon ( Greek: xenos, a stranger)

  • Hydrogen ( Greek: hydro, water; and genes, producing)


Simbol element unsur

Simbol Element (Unsur)

  • H = Hydrogen

  • He = Helium

  • C = Carbon

  • Ca = Calcium

  • Cr = Chrom = Chromium

  • N = Nitrogen

  • Na = Natrium = English: Sodium

  • Ne = Neon

  • O = Oxygen

  • F = Fluor

  • Fe = Ferrum = English: Iron = Besi


Simbol element

Simbol Element

  • Mg = Magnesium

  • B = Boron = Borium

  • Ba = Barium

  • Cl = Chlorin = Chlor = Chlorium

  • Al = Alumunium

  • Ag = Argentum

  • S = Sulfur

  • Si = Silicon = Silisium

  • P = Phosphor

  • K = Kalium = English : Potassium

  • DsttolongdipelajariDaftarPeriodikUnsur-Unsur


Measurement and the international system of units

Measurement and The International System of Units

Metric System French Revolution in 1799  International System of Units (Systeme International d’Unites – SI) at the Metric Convention in Paris in 1875

QuantityUnitSymbol

Lengthmeterm

Masskilogramkg

Timeseconds

TemperaturekelvinK

Amount of substancemolemol

Luminous intensitycandelacd


Si rule

SI Rule

  • The beaker contains 5 g of mercury - TRUE

  • The beaker contains 5 g. of mercury – FALSE

  • The beaker contains 5 gs of mercury - FALSE


Si prefix

SI prefix

  • Multiple or fractionPrefixSymbol

  • 1012teraT

  • 109gigaG

  • 106megaM

  • 103kilok

  • 10-1decid

  • 10-2centic

  • 10-3millim

  • 10-6micro

  • 10-9nanon

  • 10-12picop

  • 10-15femtof

  • 10-18attoa


Conversion of some common units

Conversion of some common units

  • 1 angstrom = 1 A0

  • = 10-10 m

  • = 10-8 cm

  • = 10-1 nm

  • 1 in = 0.0254 m = 2.54 cm

  • 1 mi = 1.609 km

  • 1 m3 = 103 L

  • 1 L = 103mL = 1.057 quart (U.S., liquid)

  • 1 ft3 (U.S.) = 28.32 L

  • 1 kg = 2.205 lb


Length

Length

  • Platinum – Iridium bar at the International Bureau


  • Login