[edub054]

Hi this is a problem on my homework for Analytical Chem, and I'm not sure how to do it. My teacher gave us a handful of very unhelpful slides and there is no hint for it. I greatly appreciate the help. Thank you.

[Dan]

Start with the data for the aliquot with no ammonium in it, a little basic arithmetic gives you % potassium content.

From that, calculate the KBPh₄ content of the first aliquot. This should be less than 295 mg, the leftover is NH₄BPh₄