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Chemistry

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  • $\begingroup$ Try adding a precise amount to excess standard NaOH, carefully distilling off the ammonia and titrating the remaining NaOH with HCl. $\endgroup$
    – jimchmst
    Commented Nov 30, 2023 at 20:32
  • $\begingroup$ If you have a good balance and a 100 ml volumetric flask you can determine the density of the solution directly. $\endgroup$
    – MaxW
    Commented Dec 2, 2023 at 10:17
  • $\begingroup$ @MaxW, I tried that but the values I got are way off -- less dense than pure water. The balance is only to 2 d.p. so I suspect it is not good enough. $\endgroup$
    – Rafael
    Commented Dec 2, 2023 at 15:49