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Andrea D. Merry; John A. Means; Tim E. Hall – Journal of Chemical Education, 2024
In this laboratory activity, students were tasked with determining the heat of combustion for each of three common sugar substitutes: saccharin, aspartame, and sucralose. The heats of combustion were determined via three different methods: bomb calorimetry, heats of formation derived from semiempirical calculations, and tabulated average bond…
Descriptors: Science Instruction, Science Laboratories, Laboratory Experiments, Equipment
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Nhu Huynh Le; Hung Tan Ha – SAGE Open, 2023
The article presents a lexical study that investigates the lexical demands of academic written texts at different levels of writing. By employing the British National Corpus/ Corpus of Contemporary American English (BNC/COCA) word list and the Academic Word List (AWL), the present study analyzed data from the British Academic Written English…
Descriptors: Academic Language, Writing (Composition), North American English, Word Lists