Industrial-grade sulfuric acid is routinely diluted before use. A technician draws a sample of the diluted acid and measures its pH to be 0.70 at 25 °C. Assume that both acidic protons of H2SO4 dissociate completely in the solution.
(a) Calculate the hydronium-ion concentration in the sample.
(b) Determine the molar concentration of H2SO4 present in the sample, clearly indicating how stoichiometry affects your calculation.