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AMUEEE Chemistry Flashcards
51 question-and-answer cards covering Chemistry as it is examined in AMUEEE. 24 of them are printed below, taken from across the deck — no signup, no paywall on the preview.
24 sample cards from the Chemistry deck
Sampled from the end of the deck, so these are different cards from the ones shown on the syllabus page.
List the four colligative properties of solutions.
Relative lowering of vapour pressure, elevation of boiling point, depression of freezing point, and osmotic pressure.
Give the equation for osmotic pressure.
pi = CRT = (n/V)RT, where pi is osmotic pressure, C is molar concentration, R is gas constant, T is temperature in kelvin.
What is the van't Hoff factor (i) and what does i > 1 indicate?
i = observed colligative property / calculated value (assuming no association/dissociation). i > 1 indicates dissociation; i < 1 indicates association.
Give the Nernst equation for an electrode at 298 K.
E = E0 - (0.0591/n) log Q, where E0 is standard electrode potential, n is electrons transferred, and Q is the reaction quotient.
State Faraday's first law of electrolysis.
The mass of a substance deposited or liberated at an electrode is directly proportional to the quantity of electricity passed: m = ZIt (Z = electrochemical equivalent).
How do molar conductivity and conductivity change with dilution?
Molar conductivity increases with dilution (more ions free to move per mole), while conductivity (specific conductance) decreases with dilution due to fewer ions per unit volume.
Relate standard cell potential to Gibbs energy and to equilibrium constant.
Delta G0 = -nFE0_cell and Delta G0 = -RT ln K, so E0_cell = (RT/nF) ln K = (0.0591/n) log K at 298 K.
Write the integrated rate law for a first-order reaction and its half-life.
k = (2.303/t) log([A0]/[A]); half-life t(1/2) = 0.693/k, independent of initial concentration.
How does the half-life of a zero-order reaction depend on initial concentration?
For zero order, t(1/2) = [A0]/(2k), so the half-life is directly proportional to the initial concentration.
State the Arrhenius equation and the meaning of Ea.
k = A.e^(-Ea/RT), where A is the pre-exponential (frequency) factor and Ea is the activation energy, the minimum energy needed for reaction.
How does a catalyst affect a reaction's rate and equilibrium?
A catalyst lowers the activation energy by providing an alternative pathway, speeding up forward and reverse reactions equally; it does not change the equilibrium position or Delta G.
Distinguish physisorption from chemisorption.
Physisorption: weak van der Waals forces, low heat, reversible, decreases with temperature. Chemisorption: chemical bonds, high heat, often irreversible, specific, increases then decreases with temperature.
What is the difference between a lyophilic and a lyophobic colloid?
Lyophilic colloids are solvent-loving, reversible and stable (e.g. starch, gelatin). Lyophobic colloids are solvent-hating, irreversible and need stabilizers (e.g. metal sols).
Define oxidation and reduction in terms of oxidation number.
Oxidation is an increase in oxidation number (loss of electrons); reduction is a decrease in oxidation number (gain of electrons).
What is a disproportionation reaction? Give an example.
A reaction in which the same element is simultaneously oxidized and reduced. Example: 2H2O2 -> 2H2O + O2 (oxygen goes from -1 to -2 and 0).
State the periodic trends in atomic radius across a period and down a group.
Atomic radius decreases across a period (increasing nuclear charge) and increases down a group (additional shells).
Define electronegativity and name the most electronegative element.
Electronegativity is the tendency of an atom to attract a shared pair of electrons in a bond. Fluorine is the most electronegative element.
State Fajans' rules for covalent character in ionic bonds.
Covalent character increases with small cation, large anion, and high charge on the ions (greater polarization).
According to VSEPR theory, what shapes correspond to sp, sp2 and sp3 hybridization?
sp = linear (180), sp2 = trigonal planar (120), sp3 = tetrahedral (109.5 degrees).
Why is the H2 molecule diamagnetic and O2 paramagnetic per molecular orbital theory?
H2 has all electrons paired (bond order 1, diamagnetic). O2 has two unpaired electrons in pi* antibonding orbitals (bond order 2, paramagnetic).
State the diagonal relationship pairs in the periodic table.
Li-Mg, Be-Al, and B-Si show similar properties due to comparable charge/size ratios despite being in different groups and periods.
What is the lanthanide contraction and one of its consequences?
The steady decrease in size of lanthanide ions with increasing atomic number due to poor shielding by 4f electrons; it makes the second and third row transition elements (e.g. Zr/Hf) nearly equal in size.
State Werner's coordination theory terms: primary and secondary valence.
Primary valence = oxidation state (ionizable, satisfied by anions); secondary valence = coordination number (non-ionizable, directional, fixed for a metal).
What are addition and condensation polymers? Give one example of each.
Addition polymers form by repeated addition of monomers with no by-product (e.g. polythene). Condensation polymers form with elimination of small molecules like water (e.g. nylon-6,6).
What this deck covers
The Chemistry deck follows the AMUEEE Chemistry syllabus — 5 chapters and 10 topics — so questions land on material that is genuinely examinable rather than trivia around it. That works out to roughly 10.2 cards per chapter.
Answers are written to be recallable, not just readable — averaging about 142 characters, which is long enough to carry the reasoning and short enough to say out loud.
A deck like this earns its keep on the second and third pass. Read the syllabus first so you know the shape of the subject, then use the cards to find the specific facts that have not stuck.
Chemistry flashcards FAQ
How many Chemistry flashcards are in this AMUEEE deck?
51 cards. This page previews 24 of them, sampled evenly across the deck so you can judge the difficulty before installing anything.
Are these AMUEEE flashcards free?
Yes. The preview here is free to read with no signup, and the full 51-card deck is free inside the Examius app.
What do the Chemistry cards cover?
They follow the AMUEEE Chemistry syllabus — 5 chapters and 10 topics — so the questions track what is actually examinable.
How should I use these flashcards?
Read the syllabus first so you know the shape of the subject, then drill the deck. Examius schedules each card with spaced repetition, so cards you keep missing come back sooner and ones you know drift further apart.