The brown gas no2 and the colorless gas n2o4 exist in equilibrium,2no2 n2o4.in an experiment, 0.625 mole of n2o4 was introduced into a 5.00 l vessel and was allowed to decompose until equilibrium was reached. the concentration of n2o4 at equilibrium was 0.0750 m. calculate kc for the reaction.0.0500.07500.100.1257.5

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Answer asap need to be answered by wednesday morning explain how a buffer works, using an ethanoic acid / sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.