13. Solving a chemistry problem

13. Solving a chemistry problem

11. An unknown amount of NH4OH is added to 20 ml of HCl (titer T (HCl)
= 0.009135 g/ml) and excess HCl was titrated with 7.50 ml of NaOH with concentration c(NaOH)=0.2003 mol/l. Determine the mass content (g) of NH4OH.

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