Example: A quinhydrone electrode is placed in aqueous
solution of a weak acid and is connected to a calomel
electrode through a salt bridge. The cell is used in the
titration of the acid by NaOH. At 75% neutralisation, the
potential of the cell is 0.275V. The calomel electrode
potential is 0.2415V. The standard potential of the
quinhydrone electrode is 0.699V at 298K.
(a) Write the cell reaction.
(b) Calculate the pH of the solution.

What natural processes produce large quantities of co2

Which statements are true concerning mineral formation? check all that apply. the slower the cooling, the larger the crystals. the faster the cooling, the smaller the crystals. crystals formed from magma are smaller than crystals formed from lava. minerals can only form in solutions when the solution is heated deep underground. when a solution cools, elements and compounds leave the solution and crystallize as minerals. minerals formed from hot water solutions can form narrow channels in the surrounding rock.

A1.5l container holds p.50 grams of an unknown gas at a pressure of 0.44 atm and a temperature of 50.c what is the molar mass of the unknown gas