Unit 2 - Acid and Base Proton Transfer Reactions Flashcards
Acid
proton donor
often start with H
becomes a conjugate base
Base
proton acceptor
often ends with OH
becomes conjugate acid
Acidic Proton
hydrogen with substantial partial positive charge
Conjugate Acid-Base Pair
pair of compounds that mutually donate and accept protons
Hydronium Ion
water molecule combined with H+ ion
Molecular Dipole
molecule that has overall uneven distribution of electrons
Neutralisation Reaction
acid + base -> salt + water
PH scale
measure of acidity
Strong Acid
readily donates H+
100% ionised in aqueous solution
Weak Acid
doesn’t readily donate H+
less than 100% ionised in aqueous solution
Strong Base
readily accepts H+
100% ionised in aqueous solution
Weak Base
doesn’t readily accept H+
less than 100% ionised in aqueous solution
Concentration Formula
solute amount / solvent amount
Conductivity
acids are conductive
bases are non-conductive
Taste
acids taste sour
bases taste bitter
Reaction
acids are very reactive
bases aren’t very reactive on there own
Acid + Metal Basic Formula
acid + metal -> salt + H2(g)
Acid + Oxide Basic Formula
Acid + Oxide -> Salt + H2O(l)
Acid + Carbonate Basic Formula
Acid + Carbonate -> Salt + H2O(l) + CO2(g)
Concentration of Acid Formula
H3O+ = 10*-14/OH-
Concentration of Base Formula
OH- = 10*-14/H3O+
pH Formula
-log10[H3O+]
Ionisation Constant of Water Formula
acid + base -> salt + water
Amphiprotic
substance that can act as both an acid and base