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Hannah Lee 2F wrote:As a general rule of thumb, can we assume the approximation rule whenever K < 10^-5 or K < 10^-3? Which value of K is it? (assuming that you always check if the approximation is valid after solving for x)
How do you check if the approximation is valid? Do you look at what you solved for x and see if it is less than 5% or do you look at the percent protonated/deprotonated and see if it is less than 5%?
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