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Hello,
I simply don't understand the solution to this green-marked task…
Why is – P(headache AND dizziness) calculated in the solution formula and not + P(headache AND dizziness)????????
Is the solution wrong or am I making a mistake in my thinking?
Thanks for help 🙂
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Loading...If you have HA <-> H+ + A-, why do you say [H+] * [A-] for the ion product, or rather, in the numerator of the equilibrium constant? The concentration of one ion would be sufficient, since [H+] = [A-] always applies (logically, if an H+ dissociates from HA, an A- must also dissociate). Isn't…
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Those who have both side effects are counted twice in both those with one side effect and those with the other side effect, so one has to take it out again. P(“headachem”) means not only headaches and no other side effect, but headaches no matter what else
So, in short, because you count them twice?