If a strong acid or base is dissolved in water, will all of its parts have the concentration?

For example inCa(OH)2 = Ca + 2OHif the concentration of Ca(OH)2 is 8.11x10^-3 M, would the concentrations of Ca and 2OH be the same? or in the case of

For example in
Ca(OH)2 = Ca + 2OH
if the concentration of Ca(OH)2 is 8.11x10^-3 M, would the concentrations of Ca and 2OH be the same? or in the case of OH, the concentration has to be multiplied by 2 because of the proportion in the equation?

or:For example inCa(OH)2 = Ca + 2OHif the concentration of Ca(OH)2 is 8.11x10^-3 M, would the concentrations of Ca and 2OH be the same? or in the case of OH, the concentration has to be multiplied by 2 because of the proportion in the equation?

or:No. Ca+ is an ion, a particle, and OH- is an ion, a particle, and for every molecule of Ca(OH)2 you have one Ca++ particle and two particles of OH-. So the concentration of OH- is twice that of Ca++.

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