My aim is to see how the concentration affects the rate of reaction by measuring the amount of gas produced when reacting with limestone [caco3] with hydrochloric acid [hcl] of differing concentrations.

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5th July 2005 Carey Butler Coursework

Aim

My aim is to see how the concentration affects the rate of reaction by measuring the amount of gas produced when reacting with limestone [caco3] with hydrochloric acid [hcl] of differing concentrations.

Prediction

I think that the more concentrated acid is the more gas will be produced and the reaction will get quicker and quicker.
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Explanation

I think this because in lower concentrations there are less acid molecules to attack the limestone, whereas in higher concentration the more chance there is of a collision which means the rate of reaction speeds up.

Equipment

In my experiment I will use the following equipment: Conical flask, Delivery tube, Gas syringe, Water basin, Goggles, Stopwatch, 15x of 5g caco3 chips, 3x 20ml of 20% hcl, 3x 20ml of acid.

Diagram This is how my experiment will be set up.

Method

To start off I would set up my ...

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