5h202 + 2mno4 +6h+ yeilds 2mn2+ +6h20+5o2
in a titration experiment h202 reacts with aqueous mno4 as represented by the equation above. the dark purple kmno4 solution is added from a buret to a colorless acidified solution of h2o2 in a flask.
at a certain time during the titration, the rate of appearance of o2 was 1.0 x 10^-3 mol/l. what was the rate of disappearance of mno4, at the same time?

a) 6.0 x 10^3
b) 4.0 x 10^3
c) 6.0 x 10^4
d) 4.0 x 10^4

Compare and contrast solutions and suspensions

)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.

Which statement would indicate the presence of an acid