suatu larutan dibuat dri 5,0 grm NaCl, 50grm air dan 2,0 grm NaOH.Hitung fraksi mol NaOH!
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suatu larutan dibuat dri 5,0 grm NaCl, 50grm air dan 2,0 grm NaOH.Hitung fraksi mol NaOH!
1 Jawaban
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1. Jawaban Risep
[tex]X_{NaOH}= \frac{n~NaOH}{n~NaOH+n~NaCl+n~H_2O} \\ \\ = \frac{ \frac{2}{40}}{\frac{2}{40}+ \frac{5}{58,5} + \frac{50}{18}} \\ \\ = \frac{\frac{2}{40}}{2,9} \\ \\ =0,017 [/tex]