The Effect of Concentration on the Rate of a Reaction

The Effect of Concentration on the Rate of a Reaction

Aim- Our aim is to investigate the effect of concentration in the rate

of a reaction.

Method- Below is a step-by-step guide to exactly what we did to do the

experiment.

The first thing we did or we do in any experiment involving acid is

put on safety goggles so we do not ruin our eyes.

Ø We then went and gathered up the equipment to complete the

experiment. The list is below:

Ø A Balance (scales)

Ø A gas syringe (100 cm cubed)

Ø 3m Hydrochloric acid

Ø A conical flask.

Ø A clamp stand

Ø A Beaker

Ø A Measuring cylinder

Ø Three grams worth of marble chips

Ø Stopwatch

· We measured twenty millilitres of Hydrochloric acid in the measuring

cylinder we then poured the Hydrochloric acid into the conical flask.

· We then got a square piece of paper and then placed it on the

balance. We pressed the button with the T symbol on it; this then

turned the units to zero grams.

· We then got the tub of marble chips and measured out three grams of

marble chips.

· We then put the marble chips into the hydrochloric acid that we

poured into the conical flask, and then we quickly put the cork ,that

was on the end of the gas syringe, into the top of the conical flask.

· We then measured how many cubic centimetres were given off by the

reaction every ten seconds over a time span of one hundred seconds.

· The three grams of marble chips reacted too fast due to a grater

surface area being covered; therefore, we tried 1.5 grams worth of

marble chips.

· For the 1.5 molar acid experiment we did the same steps as above.

Below is a diagram of what we did…..

This is a table of a three molar acid, and how long it took for the

carbon dioxide to be produced.