History homework help. Which of the following buffer systems would be the best choice to create a buffer with pH = 9.05?HF}/KFHNO2/KNO2NH3/NH4ClHClO/KClO~for this I got NH3/NH4Cl because this would give off a buffer greater then (pH> 7.0).but I am having trouble with the second part:For the best system, calculate the ratio of the masses of the buffer components required to make the buffer.Express your answer using two significant figures.m(NH3)/ m(NH4Cl)=
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