Investigate the effect of concentration of acid on the rate of reaction between marble chips (CaC03) and excess Hydrochloric acid (HCL).
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NAME: ASHLEY FERNANDES CLASS: SENIOR 5 'B' CHEMISTRY 'RATES OF REACTIONS' COURSEWORK INTRODUCTION AIM: - To investigate the effect of concentration of acid on the rate of reaction between marble chips (CaC03) and excess Hydrochloric acid (HCL). RATE: - Rate is a measure of the change that happens in a single unit of time. This change can be of any suitable unit of time (a second, a minute, an hour or even a day). Hence rate is a measure of how fast or how slow something is. Example, a money-printing machine can print bills at the rate of, 25 copies per second. Another is that a plane can fly 875 kilometers per hour. Reaction rate is the measure of the change that happens during the reaction in a unit of time. We have to imagine, for example that there is a car traveling at the speed of 80-90 kilometers per hour down the motorway. Each second about 40...

