How does the concentration of acid effect rates of reaction?

Mandeep Landra Coursework – Chemistry October 2003

Title of Experiment: How does the concentration of acid effect rates of reaction?

Background Knowledge

If you make an orange dink from cordial, the cordial is a very solution of orange juice in water. It is usually far too strong to drink, so to make it suit our taste, we need to add water to it and dilute it. If we magnified the drink, stopped the particles from moving and compared the particles in them, they would look like this:-

A high concentration of orange A low concentration of orange

The stronger the solution, the higher its concentration.

Wee need some way of measuring how high the concentration is, but we cannot count the particles, because it would be time-consuming, even if we could see them. There is a special way of measuring concentration.

The moles in solution

The concentration is sometimes called the molarity of a solution.

1M means that there is 1 mole of the substance dissolved in 1dm³ (or 1000cm³) of its solution,

There is an equation, which we can use to figure this out:

No. of moles in a solution = molarity x volume of solution in cm³