gamsat general chemistry

egamsat gamsat prep

Chemistry is quite an extensive and important topic in GAMSAT. General Chemistry comprises approximately 20% of Section III but the principles of general chemistry will often appear in biology and organic chemistry questions as well. GAMSAT assumes a level of chemistry knowledge equivalent to the first year of university.

 

 

 

 

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Atoms and Periodic Trends 

Understand the nature of atoms

Be aware of trends in the periodic table especially patterns regarding atomic size and electronegativity.

 Understand the different categories of elements, their features and have an understanding of the most common elements.

 

Stoichiometry

Be able to interconvert units especially with regard to moles and molecular weights.

Be able to balance equations

 

Bonding and Quantum Mechanics

Know the different types and properties of bonds

Understand electronegavity and polarity of molecules

Know the different shapes of  molecules according to VSEPR theory

Know the effect of electron withdrawing groups

Understand hybridised bonding and how it affects bond strength

Understand electron orbitals and quantum numbering

 

Kinetics and Equilibrium

Understand and apply Le Chatelier’s principle

Know the effects of heat, catalysts and change in concentrations on reaction rates

Know how to calculate the rate and order of a reaction

Understand what equivalence and equilibrium points are and be able to interpret them graphically

 

Gases

Understand and apply the ideal gas laws and be able to predict the deviation of real gases from this law

 

Solutions

Know how changed conditions will affect solubility – temperature, pH, chemical concentrations, pressure

Apply Ksp values to determine solubility and precipitation

Understand how chemical properties affect solubility

 

Phase Changes and Colligative Properties

Understand heat capacity and specific heat

Interpret phase diagrams

Understand vapour pressure and Raoult’s Law

Understand how vapour pressure impacts boiling and melting points

Understand and apply the concepts of Boiling Point Elevation and Freezing Point Depression

 

Thermodynamics

Understand the laws of thermodynamics

Understand Entropy, Enthalpy, and Gibbs Free Energy

Predict whether a reaction will be spontaneous

Predict whether a reaction will be exothermic or endothermic

 

Acids and Bases

Understand what pH is and be able to calculate H and OH ion concentrations

Understand pKA values and how they relate to pH values

Know the links between an acid or base and its conjugate

Predict whether a molecule will act as an acid or base depending on its structure

Understand acid base titrations graphically

Understand how molecular stability, solubility and electronegativity relate to acidity

Predict how an acid-base indicator will respond to a solution, given pH and pKA values

 

Electrochemistry

Differentiate between reduction and oxidation reactions

Predict which molecule will act as an oxidising agent or reducing agent

Apply E values to calculate the potential of a cell and direction of a reaction

Apply E values to compare reduction potentials

Understand the components of a galvanic cell and how electrons and ions flow in such a cell