Design - Investigate the effect of one factor on the experimentally determined pKa of a weak acid
HL Chemistry Design Prac
Investigate the effect of one factor on the experimentally determined pKa of a weak acid.
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Research question:
How will changing the concentration of the reaction ethanoic acid affect the experimentally determined pKa value of ethanoic acid with hydroxide?
Background Research:
In chemistry, the acid dissociation constant, Ka, is known as the equilibrium constant for the reaction between weak acid and conjugate base, both in aqueous state.
A + B ⬄ C + D
To calculate the value of Ka in the reaction above, the concentration of C and D over A and B is to be calculated.