A student wants to make a 0.100M solution with solid NaOH (s). Determine the mass of NaOH(s) required to make 250.0 mL of 0.100M NaOH(aq)
The student standardizes the NaOH(aq) she made by reacting it with solid oxalic acid, H₂C₂O₄. She property fills a buret with sodium hydroxide and makes a solution of oxalic acid in 250mL Erlenmeyer flask. In the flask the student dissolves 0.127g of solid oxalic acid in 10.0 mL of DI water. The reaction between NaOH and H₂C₂O₄ is shown below.
H₂C₂O₄(aq) + 2 NaOH(aq) ￫ Na₂C₂O₄(aq) + 2 H₂O(l)
Give the net-ionic reaction between the weak acid oxalic acid and the strong base sodium hydroxide.
Determine the initial moles of the oxalic acid.
The oxalic acid requires 29.2 mL of sodium hydroxide to reach equivalence. Determine the actual molarity of the sodium hydroxide solution.
The student determines that the reaction between oxalic acid and sodium hydroxide is an oxidation-reduction reaction. Is the student correct? Explain your reasoning.