2019 09(b)/titrations/chemistry pass papers essay discussion/jeewan jayarathna/indetail explanation

I am jeewan jayarathna who is a gradguate at faculty of science university of peradeniya.also a M.sc holder in Analytical chemistry.And certified in science education and teaching methodology.
I am working as an al chemistry and ol maths,science teacher at government school.by 14 years of my teaching experience in school and private tuition teaching,i give those for our future generation with the purpose to make a good country ,world and a universe.



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