1. Calculate the molar mass of oxalic acid dihydrate (H₂C₂O₄·2H₂O):
* H: 2 atoms * 1.01 g/mol = 2.02 g/mol
* C: 2 atoms * 12.01 g/mol = 24.02 g/mol
* O: 6 atoms * 16.00 g/mol = 96.00 g/mol
* Total molar mass = 2.02 + 24.02 + 96.00 = 122.04 g/mol
2. Calculate the moles of oxalic acid dihydrate:
* Moles = Mass / Molar mass
* Moles = 2.431 g / 122.04 g/mol = 0.0199 mol
3. Calculate the concentration (molarity) of the solution:
* Molarity (M) = Moles of solute / Volume of solution (in liters)
* Molarity = 0.0199 mol / 0.250 L = 0.0796 M
Therefore, the concentration of the resulting solution is 0.0796 M.
