Paper 2

Question 1

Preparing aqueous standard solution of propanoic acid containing an accurately measure mass of the scify

Answer 1

-weigh out sample in boat
-transfer to beaker
-dissolve sample in water
-add to volumetric flask
-with washings make up to 250cm3 in volumetric flask
-shake

Question 2

-explain why there is an attraction between C=C double bond and Br2

Answer 2

-Br2 becomes polarised
Delta + attracted to C=C