question archive 1) What information does an acid or base equilibrium constant give? 2) What is the base dissociation constant for a weak base at equilibrium, B + H2 O= BH ++ OH - 3) A reaction was found to have a rate constant of k = 0
1) What information does an acid or base equilibrium constant give? 2) What is the base dissociation constant for a weak base at equilibrium, B + H2 O= BH ++ OH - 3) A reaction was found to have a rate constant of k = 0
Subject:ChemistryPrice: Bought3
1) What information does an acid or base equilibrium constant give?
2) What is the base dissociation constant for a weak base at equilibrium, B + H2 O= BH ++ OH -
3) A reaction was found to have a rate constant of k = 0.22 s-1 . Starting with [A]o = 0.444M,
what will the concentration be after 42 s?
4) Calculate the heat change in calories for melting of 0.30 kg of water at 0*C. The heat of fusion for water is 80 cal/g. The heat of vaporization of water is 540 cal/g. The specific heat capacity of water is 1.00 cal/J*C.
5) Water (H2O) molecules experience dispersion, dipole-dipole and hydrogen bonding forces. Octane (CH3-CH2- CH2- CH2- CH2- CH2- CH2- CH3) molecues experience dispersion forces only. Water boils at 100 0C, whereas octane boils at 125.6 0C. Briefly explain why octane has the higher boiling point temperature.
