rates of reaction

Matt Benison Chemistry 10a/Sc2

10FC Mrs Kirpalani

The rates of reaction

The purpose of our investigation was to find out if the surface area of marble chips, affect the rate of reaction and to find out which method would give the best and most accurate results. We did this by measuring out the same volume of acid and add it to a measuring cylinder. We used 20 ml of acid. And we used the same weight of marble chips. But had them in three different sizes, Powdered, Large Chips and small chips.

KEY

2Hcl + CaCo3 CaCl2+H2o+Co2 aq : aquaris

(aq) (s) (aq) (l) (g) S: solid

l: Liquid

g: Gas

We poured the acid into the measuring cylinder and got the stop watch ready and the right weight of marble set. As we tipped in the marble powder to the acid solution we started the stop watch and waited for the marble powder to dissolve.

Apparatus:

Measuring tube

Thermometer

Large measuring cylinder

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Cornelia Bruce

17th of Apr 2013

This report is limited significantly by its length. It missed some of the key elements to successfully investigate and draw conclusions about the effect of surface area on the rate of reaction. There are a number of improvements suggested throughout the report.

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