59. Solving a chemistry problem

59. Solving a chemistry problem

3. A sample of magnesium oxide weighing 0.1535 g was dissolved in 40.00 ml of HCl with a titer of 0.003646 g/ml. The excess acid was titrated with 5.5 ml of sodium hydroxide solution with a titer of 0.004040 g/ml. Calculate the mass fraction (%) of MgO in the sample.

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