A 500 mL rigid flask at 298 K is filled with dry N at 1.00 atm
CHEMISTRY · Subjective · A Level · Chemistry · Amount of substance · Amount of substance
Problem
A 500 mL rigid flask at 298 K is filled with dry N2 at 1.00 atm. A solution containing 40.0 mL of 0.200 M Na2S2O3 is then injected along with excess HCl, generating SO2(g) according to
Na2S2O3(aq) + 2 HCl(aq) → 2 NaCl(aq) + H2O(l) + SO2(g) + S(s)
After the reaction has gone to completion at 298 K, calculate the partial pressure of SO2 in the flask. (Assume the volumes of liquids and solids are negligible and that no nitrogen is consumed.)