chem problem

[Wonky-Faint]

<p>The molecular weight of a monoprotic acid HX was to be determined. A sample of 15.126 grams of HX was dissolved in distilled water and the volume brought to exactly 250.00 millilitres in a volumetric flask. Several 50.00 millilitre portions of this solution were titrated against NaOH solution, requiring an average of 38.21 millilitres of NaOH. </p>

<p>(c) Calculate the molecular weight of HX.</p>

<p>the answer is 163.4 g/mol</p>

[grark]

<p>don't you need like the molarity of the NaOH solution?</p>

[GoldShadow]

<p>Yeah, what grark said.</p>

<p>Also I guess you just assume that the acid is a strong acid that disocciates completely?</p>

[arklogic]

<p>Yea... u need the molarity</p>