Thursday 22 February 2018

Leaving Cert Chemistry was a paper with a 'familiar start but challenges ahead'

(Stock picture)
(Stock picture)
Katherine Donnelly

Katherine Donnelly

The paper had a familiar start, but there were challenges waiting ahead for candidates sitting the Leaving Certificate higher level chemistry paper, said teacher Tara Lyons of the Institute of Education.

Ms Lyons said while "students did not need to write much, but as is nearly always the case with chemistry, they needed to be very precise in their answers.”

In Section A, Ms  Lyons said questions 1 and 2 were “very manageable” but  Question 3 was “challenging by comparison, with experimental data and graph drawing a requirement to get most of the marks”.

She said many familiar topics appeared in  Section B including  old faithfuls in atomic theory , such as atomic structure and its history , but, surprisingly, water and its treatment failed to appear.”

According to Ms Lyons, careful reading of the organic chemistry questions was needed as very specific answers were required: "There was no room for ambiguity and an in-depth knowledge of reaction types, molecular structures and reagents was a must."

She said that, generally, quite a substantial amount of calculation was needed in many of the Section B, with questions on  equilibrium, pH and gas laws all requiring  stoichiometric analysis.

Online Editors

Promoted Links

Today's news headlines, directly to your inbox every morning.

Promoted Links

Editor's Choice

Also in Irish News