Coursework.Info - Inspiration in an Instant

On the left is an image preview of every page of this document, and below are the first 150 words with formatting removed:

Title: Hydrochloric Acid and Marble Chips Aim: Find the rate of reaction when dissolving marble chips in Hydrochloric acid. Hypothesis: The rate of a chemical reaction is a measure of how quickly a reaction takes place. One or more of the following can easily affect this: * The particle size * The concentration * The pressure * The temperature * The presence of a catalyst I will talk about each of these affects in turn. 1) The particle size used within solids and liquids are normally dealt with in smaller particles of the solid reactant. This is because the atoms or ions on the surface of the particle are the cause of the reaction by mass. So, mass is greater when referring to smaller particles than larger ones. 2) The concentration of a reaction is proportional to the concentration of the acid used. 3) Pressure increases the rate of reactions due to the molecules being more compressed, making them react more...

To see the full version of this document, and 145,841 others