A 50.00 cm3 (0.05 dm3) sample of concentrated sulfuric acid was diluted to 1.00 dm3 (a dilution factor of 20). A sample of the diluted sulfuric acid was analysed by titrating with aqueous sodium hydroxide. In the titration, 25.00 cm3 of 1.00 mol dm-3 aqueous sodium hydroxide required 20.00 cm3 of the diluted sulfuric acid for neutralization.
Determine the concentration of the original concentrated sulfuric acid solution using the steps below.
a. Construct the equation for the complete neutralization of sulfuric acid by sodium hydroxide.
b. Calculate the amount of sodium hydroxide that was used in the titration.
c. Calculate the concentration of the diluted sulfuric acid.
d. Calculate the concentration of the original concentrated sulfuric acid solution.