Intermolecular Forces & Properties
This molecule has the highest vapor pressure among CH3CH2OH, CH3OCH2CH3, CH3F, CH3CH2CH2CH3, CH3COCH3.
What is CH3CH2CH2CH3?
The pH at the half-equivalence point of a weak acid titration equals this value.
What is pKa?
A reaction that is second order in O2 and first order in H2 has this rate law.
What is Rate = k[H2][O2]²?
At equilibrium, forward and reverse reaction rates are this.
What is equal?
If E°cell is positive, the reaction is this.
What is spontaneous?
This molecule has the strongest intermolecular forces: CH3CH2CH2CH3, CH3CH2CHOCH3, CH3CH2COCH3, CH3CH2OCH2CH3, CH3CH2CH2CH2OH.
What is CH3CH2CH2CH2OH?
This solution has the lowest pH: NaCl, K2SO4, NH4Cl, NaF, Na2CO3.
What is NH4Cl?
In a reaction mechanism, the slow step determines this.
What is the rate law / rate-determining step?
When ΔS is negative, disorder is this.
What is decreasing?
Oxidation occurs at this electrode.
What is the anode?
This type of solid is incorrectly matched:
Diamond (C) - covalent network
Rose gold (CuAu) - ionic solid
Naphthalene (CoHs) - molecular solid
Glass (SiOz) - covalent network
Potassium Chloride (KCI) - ionic solid
What is Rose gold — ionic solid?
A buffer is best described as this type of mixture.
What is a weak acid + conjugate base (or weak base + conjugate acid)?
For a second-order reaction, the integrated rate law involves this relationship.
What is 1/[A] vs time is linear?
ΔG° is calculated using this equation.
What is ΔG° = ΔH° − TΔS°?
The Nernst equation corrects E cell for this factor.
What is nonstandard concentrations?
Freezing point depression depends on this property.
What is number of particles (van’t Hoff factor)?
The best indicator for titrating NH₃ with HCl changes color in this pH range.
What is ~4–5.5 (Bromcresol green)?
Carbon-14 decay follows this order of kinetics.
What is first order?
If Kc << 1, equilibrium favors this side.
What are the reactants?
In the reaction Zn(s) + Cu²⁺ → Zn²⁺ + Cu(s), Zn is _____ (oxidized or reduced?)
What is oxidized?
Which solution has the lowest vapor pressure?
What is 0.04 M FeCl₃?
A buffer is prepared by mixing 100.0 mL of 0.10 M acetic acid (CH₃COOH) with 100.0 mL of 0.10 M sodium acetate (CH₃COO⁻).
Given: Ka for acetic acid = 1.8 × 10⁻⁵
Calculate the pH of the buffer.
What is pH = 4.74?
For the reaction: 2NO(g) + Cl₂(g) → 2NOCl(g)
When the concentration of NO is tripled while Cl₂ is kept constant, the rate increases by a factor of 9.
When the concentration of Cl₂ is tripled while NO is kept constant, the rate increases by a factor of 3.
Determine the rate law.
What is Rate = k[NO]²[Cl₂]?
For a reaction spontaneous only at high temperature, signs of ΔH and ΔS are this.
What are ΔH > 0 and ΔS > 0?
Given standard reduction potentials:
Calculate the standard cell potential for the spontaneous reaction.
What is E°cell = +0.633 V?