Enthalpy – Simple calorimetry, Combustions of alcohols

Enthalpy – Simple calorimetry, Combustions of alcohols

In this experiment, you'll be measuring the heat of combustion of a series of five primary alcohols, from methanol to pentanol. By burning a measured mass of an alcohol in a spirit lamp and transferring the heat energy released to a calorimeter containing water, you'll be able to calculate the heat of combustion. The experiment requires safety glasses, a thermometer, a calorimeter, and the primary alcohols, which are flammable and potentially poisonous. Once completed, you'll be able to plot a graph of your results and draw conclusions from the data.

Calculating the empirical formula of a compound

Calculating the empirical formula of a compound

This chemistry experiment teaches you how to calculate the empirical formula of a compound by using molar ratios and mass calculations. By exploring the reaction between magnesium and oxygen, you can determine the empirical formula of the compound formed. The experiment involves heating magnesium ribbon with oxygen to produce magnesium oxide, recording the masses of the substances before and after the reaction, and calculating the molar ratios to determine the empirical formula. Learn about the procedure, requirements, and calculations involved in this experiment, and explore questions that will help you further understand the concept of empirical formulas.

Atomic Emission Spectra

Atomic Emission Spectra

The aim of the experiment is to introduce the spectra emitted by some s-block elements when their atoms are excited by heating in a Bunsen flame. The experiment requires a hand spectroscope, a Bunsen burner, flame-test wire, hydrochloric acid, and safety glasses. The procedure involves observing the difference between a continuous emission spectrum and a line spectrum by heating various elements and observing their emission spectra. The experiment also aims to identify the reason behind the production of a unique line spectrum for every element.

Celebrating the First Milestone: “Structure 1. Models of the particulate nature of matter” Now Complete in the IBDP Chemistry 2025 Online Textbook

Celebrating the First Milestone: “Structure 1. Models of the particulate nature of matter” Now Complete in the IBDP Chemistry 2025 Online Textbook

The IBDP Chemistry 2025 Online Textbook has completed its first milestone, "Structure 1. Models of the particulate nature of matter," providing a solid foundation for subsequent topics in the specification. The online textbook aims to be an all-encompassing and interactive resource that facilitates learning and teaching in the IBDP Chemistry community. It covers key learning outcomes, practical work, quality questions for testing understanding, and in-class teaching materials. The creator invites collaboration to ensure the textbook's relevance and efficacy, and encourages everyone to explore the completed section and contribute to its development.

Investigation of Neutralizing Hydrochloric Acid with Sodium Hydroxide and Separating a Soluble Salt

Investigation of Neutralizing Hydrochloric Acid with Sodium Hydroxide and Separating a Soluble Salt

By using activated charcoal to remove the indicator, this modified experiment demonstrates the neutralization of hydrochloric acid with sodium hydroxide and the separation of a soluble salt. The procedure can be used to investigate the stoichiometry of acid-base reactions and to determine the yield of a reaction.