The reaction quotient is Q=1.6×10-26 Part B What pH is needed to produce this value of Q if the concentration and pressure values are [Br2]=2.50×10−4M , [Br−]=11.65M, [SO42−]=9.50M, and PSO2=3.50×10−5atm ? Express your answer numerically to two decimal places.

Sodium carbonate is a reagent that may be used to standardize acids in the same way that you have used KHP in this experiment. In such a standardization it was found that a 0.498 -g sample of sodium carbonate required 21.7mLmL of a sulfuric acid solution to reach the end point for the reaction. Na, CO, (aq) + H₂SO (aq) - H₂O(l) + CO₂ (g) + Na SO (ag) What is the molarity of the H, SO? 2 3 2 4 2 2 2 2 4 Sodium carbonate is a reagent that may be used to standardize acids in the same way that you have used KHP in this experiment. In such a standardization it was found that a 0.498-g sample of sodium carbonate required 21.7 mL mL of a sulfuric acid solution to reach the end point for the reaction. Na2CO3(aq) + H2SO4(aq) + H2O(l) + CO2 (g) + Na2SO4(aq) What is the molarity of the H2SO4? ΜΕ ΑΣΦ Submit Request Answer ? M

Consider the titration of 30.0 mL of 0.0700 M HONH2 (a weak base; Kb = 1.10e-08) with 0.100 M HI. Calculate the pH after the following volumes of titrant have been added: (a) 0.0 mLpH =  (b) 5.3 mLpH =  (c) 10.5 mLpH =  (d) 15.8 mLpH =  (e) 21.0 mLpH =  (f) 27.3 mLpH =

A 100.0 mL sample of 0.200 M aqueous hydrochloric acid is added to 100.0 ml of 0.200 M aqueous ammonia in a calorimeter whose heat capacity (excluding any water) is 480.0 J/K. The following reaction occurs when the two solutions are mixed. HCl(aq)+NH,(aq)—NH_Cl(aq) The temperature increase is 2.34 °C. Calculate AH per mole of HCI and NH, reacted. Select one: о a. -1.96 KJ/mol b. 154 KJ/mol O c. 485 KJ/mol d. 1.96 KJ/mol Jm e. -154 J/mol