What's the pH of a solution composed of 0.2 moles of NH3 and 0.15 moles of nh4cl

Explanation:

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In this case, since the ionization of ammonia, which is a weak base, is written as:

We can see that the ammonium ion is the conjugate acid whereas the hydroxide ions the conjugate base; that is why we use the Henderson-Hasselbach equation to compute the pH, given the pKb of ammonia 4.75:

In such a way, for the given moles of ammonia, base, and those of ammonium chloride, conjugate acid form, we obtain:

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it should be all of them because it asks if you included all of those in your answer

explanation:

the mantle

explanation:

earth is divided into three layers: the crust or the outermost layer on which we live; the underlying, middle layer - the mantle - and the core (the innermost layer of earth).