Chem 300 Final Exam Study Guide Fall 2017

Attached. please i need someone to answer these question as sample of final exam . I need someone who is very good in chemstry to answer these and if a question needs an example will be able to explain it well to me
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Chem 300
Final Exam Study Guide
Fall 2017
Multiple Choice (should take 30s or less to answer)
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Significant figures (ex. Round to 5 significant figures)
Significant figures calculations (adding/subtracting/multiplying/dividing)
Scientific notation
Converting between metric-to-metric (Ex. Grams to nanograms, etc.)
Uncertainty with different types of balances/glassware (Ex. What has the least uncertainty a +/0.1 g balance versus 0.02 g balance)
Density (know definition and be able compare to what would be more or less dense)
From labs with reading rulers: know how to read a rule to the correct precision and to know the
uncertainty.
Terms for changes of state (ex. Solid to liquid, etc.)
Know diatomic molecules
Know group names in periodic table (ex. Noble gases, halogens, etc)
For states of matter know properties (ex. Solids – does it have definite volume, shape and what
is its kinetic energy like)
Definition of a solution
Definition of elements, compounds pure substances, homogeneous and heterogeneous
mixtures
Definition of chemical property and physical property and are they similar/different down a
group?
Recognize covalent vs. ionic bonds
Isotopes – know the definition and be able to determine a neutral and ionized atom when given,
protons, neutrons and electrons.
Mass number versus atomic number
If given a shell how many orbitals and electrons are in the shell.
Identify the s block, p block, d block and f block
Definition of metals and nonmetals
Ionic versus covalent compounds (what is the smallest particle called)
Identify valence electrons
Chemical change versus physical change
Single displacement reactions
Be able to identify a decomposition, redox, synthesis/combination, combustion, precipitation,
neutralization reaction.
Electron configuration for a neutral transition metal and a charged transition metal
Definition of dynamic equilibrium
Kinetic energy of molecules when gas is cooled
Solutions and conductivity. What is a good conductor? Strongly or Slightly ionized solutions?
Identify Bronsted-Lowry acids/bases and Arrhenius acids/bases
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Identify strong acids/weak acids and bases
If [H+] > [OH-] (or < or =) and compare which would be more acidic, basic or neutral Write the conjugate acid or base Hydrogen atom and electron transition – what transition gives the longest wavelength? The shortest wavelength? Identify what species is oxidized, reduced, oxidizing agent and reducing agent Identify isoelectronic species by looking at electron configuration of neutral and charged atoms Identify where metals, nonmetals and metalloids are located in periodic table Titrations: what is equivalence point? Do you need volumetric glassware? Is it used primarly for acid/base reactions? Is the concentration of one species usually known? Is the indicator arbitrarily chosen? Rank various atoms in order of increasing ionization energy • • • • • • • • • • • • • • Multiple choice calculation problems Use pH calculations Mass % Percent yield Percent by mass - of element within compound. Ex. Find mass percent of O in C2H6O6 Identify species reduced, oxidized, reducing agent, oxidizing agent Calculate oxidation number of specific atom within compound (ex. Cr in Cr2O7) Converting moles to grams, grams to grams, grams to molecules, etc. Use gas law formulas Calculate molarity Titration calculation Convert from celcius to K, etc. pH calculations using pH = -log [H+], etc. Metric to Metric conversions (ex. Kg to ng) Dilution calculation • • • • Worked problems • • • • • • • • • Nomenclature (give the name or formula) Perform significant figure calculations (adding, subtracting, multiplying, dividing) Isotope calculation (ex. Determine the percent natural abundances with masses given) Lewis structure, resonance, electron geometry and molecular geometry Complete and balance reactions (Ex. Bromine and Lithium produce Lithium bromide) Complete and balance a combustion reaction Limiting reagent problem finding masses of both products, calculating percent yield Complete and balance nonionized molecular equation, provide total ionic equation (TIE) and net ionic equation (NIE) Solution stoichiometry More practice: A sample of water was taken with a potassium chloride concentration of 2.5 M. What mass of iron (II) chloride can be formed if excess iron (II) nitrate is added to 35.2 mL of the sample from the lake. ... Purchase answer to see full attachment

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