ST JOHNS Park High School tasted victory in this year's NSW Schools Titration Competition after one of its chemistry teams was first in the state.
The NSW Schools Titration Competition is a quantitative analytical competition opened to students currently studying HSC chemistry.
Students compete in teams of three and must complete a set of acid-base titrations to determine the unknown concentration of a weak acid within a set time frame.
Student Melanie Lim said the competition was tough, which is why she was surprised her team came first in the state.
"The results were based on accuracy so we were quite nervous," she said.
"When we found out we came first in the state, we were all in shock.
"It was something we didn't expect."
The school's acting principal Effie Niarchos congratulated her top three students Melanie, Leon Nguyen and Sandy Ung.
"The team's score was determined by the accuracy of the work of its members," she said.
"Our students won first and tenth place.
"The success of the students made the many afternoons of additional study worthwhile."
Chemistry teacher Pamela Pham told the Champion she was thrilled with the result.
"They competed as a team against a number of other elite schools such as Sydney Grammar and Sydney Technical High School to win the top spot," she said.