# Sumamrising Chapter 1-5 Flashcard

 Chapter 1What is chemical AnalysisChemical Analysis
 Identification of chemicals present in a substance or the measurement of their concentration.
 Concentration
 Measure of how much solute is dissolved in a quantity of solution.
 Qualitative Analysis
 Process of finding what chemicals are present in the substance.
 Quantitative Analysis
 Process of finding how much chemical is present.
 Chapter 2Analysis by massGravimetric Analysis
 Quantitative analysis of substances based on the measurement of mass.
 Mole
 Unit used for counting particles. One mole is a standard amount of substance.
 6.02×10^23
 How to find:Moles, Mass, Molar Mass
 Moles = Mass/Molar massMass = Moles x Molar massMolar mass = refers to periodic table
 General gas equation
 PV = nRT
 Pressure
 1 atmosphere = 760 mmHg = 101325 Pa = 101.3 kPa
 Volume
 1000 mL = 1L
 Temperature
 Temp in K = temperature in *c+273
 Molar volume of gas
 STP- 22.4 mol-1SLC- 24.5 Lmol-1n= V/Vm
 Empirical Formula
 Simple whole number ratio of atoms present ina compound.
 Chapter 3Volumetric AnalysisConcentration
 Measure of the amount of solute expressed in molar conc referred to as Molarity.
 How to find concentration
 C=n/V
 Standard Solution
 Accurately known concentration
 Primary Standards
 Substances that are so pure that the amount of substance in mol can be accurately from their mass.
 volumetric Analysis
 Reacting a measured volume of a standard solution with a measured volume of the solution of unknown concentration.
 End point
 Titration at which the indicator changes colour.
 Aliquot
 Volume measured out by the pipette.
 Equivalence point
 point during the titration when the solutions have been mixed in the mole ratio
 Titre
 The volume of solution delivered by the burette.
 Molecular formula
 gives the actual number of atoms of each element present in a molecule of a compound.
 Limiting reactant
 reactant that is completely consumed.
 Chapter 4Analysing Acids and BasesAcids
 proton donors
 Base
 Proton acceptors
 Acid
 Acid base reaction
 involve transfer of proton from an acid to a base.
 Conjugate acid base pair
 Substances that only differ by one proton.
 Strong basesWeak bases
 bases that readily accepts protonsbases only accepts protons to a limiting extent.
 pH
 pH= -log[h30+]
 Back titration
 A technique used when an acid or base is too weak to be analysed by direct titration.
 Chapter 5Analysing Oxidants and reductantsOxidationReduction
 Oxidation- loses electrons (OIL)Reduction- gains electrons (RIG)
 Oxidising agents or oxidants
 substances that cause oxidation to occur.
 Reducing agents or reductants
 Substances that cause reduction to occur.