You room asked come prepare a $mathrmpH=3.00$ buffer solution starting from 1.25 $mathrmL$ the a 1.00 $mathrmM$ solution of hydrofluoric acid $(mathrmHF)$ and also any quantity you need of salt fluoride $(mathrmNaF)$. (a) What is the $mathrmpH$ the the hydrofluoric acid equipment prior to adding sodium fluoride? (b) How plenty of grams of sodium fluoride must be included to prepare the buffer solution? overlook the little volume readjust that occurs once the sodium fluoride is added.

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Perhaps you close to 42 grounds for an ext sign 0.789 an ext and that will certainly be 33 points. Want three heads? Graham, additionally the uncle right?