Tag: Thermochemical equation

Enthalpy – Student Design

Enthalpy – Student Design

In this experiment, students will have the opportunity to develop their practical and analytical skills, which are essential for the IA internal assessment or practical exams. By investigating the enthalpy change that occurs when solid ammonium chloride dissolves in water, students will learn how to conduct a scientific experiment using calorimetry techniques. This experiment will also allow students to calculate the enthalpy change and analyze their results, which will help them to understand the importance of accuracy and precision in scientific measurements. By engaging in this experiment, students will gain valuable experience in carrying out practical chemistry experiments and will be better equipped to succeed in their internal assessments or practical exams.

Enthalpy – Displacement

Enthalpy – Displacement

In this chemistry experiment, we aim to determine the enthalpy change for the displacement reaction between zinc and copper sulfate solution. By measuring the temperature change over a period of time and using calculations, we can obtain the enthalpy change and thermochemical equation for the reaction. The procedure involves adding excess zinc powder to the solution and recording the temperature every 30 seconds for 8 minutes. We also discuss how to calculate the percentage error and possible reasons for differences between the experimental and accepted values. This experiment is a great opportunity to learn about enthalpy, displacement reactions, and thermochemistry in practice.