In the question above, what is the mass of sodium hydroxide in the basic solution?

Question

A 17.00-mL sample of aqueous sodium hydroxide is titrated to the stoichiometric point with 19.40 mL of 0.280 M HCl(aq).

a) What is the molarity of the basic solution (sodium hydroxide) BEFORE it is titrated ?

b) In the question above, what is the mass of sodium hydroxide in the basic solution?

Answer 1

Nicole, you are speading the questions around. This question is easier than the previous one.
a. Vol x molarity of hydroxide = vol x molarity of HCL (HCl + NaOH -> NaCl+ H2O)

b. You now know moles of NaOH. Use its Mol Wt to find mass.