# An acid that ionizes almost completely in solution is a

Strong acids are those that ionizes almost completely in water. to be considered a strong acid, an acid must have an acid ionization constant ka > 55. the strong acid hcl in aqueous solution undergoes the ionization reaction: hcl(aq) + h2o(l) ⇋ h3o+(aq) + cl-(aq) and its ka = 2.00 x 106. if the concentrations of h3o+ and cl- are both found to be equal to 0.153 mol/l what is the remaining concentration hcl that is not ionized

Ka  is  the  equilibrium  constant  for  the  ionization for a reaction. It  is  calculated  as  follows
ka  is equal  to (H3o ions)(A-) divided by (HA)
2.00x106i s  equal  to 0.153x0.153 divided by ( HA)
(2.00x106)HA is  equal  to  0.023409
HA concentration  is  therefore equal to 0.023409/2.00x106 which  is 1.104x10^-4moles/litre

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