buffer

Question 1

why has buffer formed

Answer 1

as there is acid and the salt of the acid

Question 2

issociation of water exo or endo

Answer 2

endo as kw increases with temperture

Question 3

Plan an experiment that a student could carry out to measure the enthalpy change of
neutralisation

Answer 3

acid and alkli mixed
take temp at starrt and finish
energy=qmcdeltat
energy scaled upto form one mole of water

Question 4

what factors affect ph of buffer

Answer 4

ka of acid
temperature
ratio of weak acid and conjugate base

Question 5

conjugate acid base pair meaning

Answer 5

two species differing by a H