Algengar spurningar

Efna2AE05

The course is designed to introduce the elements: The periodic system, the atom, metals, non-metals and gases, atomic mass, mole and molar mass. Ionic compounds, molecular compounds. There is also emphasis on studying chemical reactions, i.e. balancing chemical reactions and types of chemical reactions. Students make calculations based on chemical reactions, e.g. on water and aqueous solutions, precipitation and mass measurements, acid-base titration. Students study gases, .e.g. air pressure, the gas laws, the ideal gas equation, chemical reactions and gas volume.

Laboratory component:

1. Freezing and melting of water. Objectives: To collect temperature data during the freezing and melting of water using Vernier data collection equipment. Analyze graphs to determine the freezing and melting temperatures of water. Determine the relationship between the freezing and melting temperatures of water.
2. Precipitation reactions. Objectives: To explore precipitation reactions, soluble vs. insoluble compounds. A qualitative test.
3. Determination of the gas constant, R. In this experiment, hydrogen gas is collected over water. By measuring P, T, n and V it is possible to arrive at an experimental value of R based on PV=nRT.