The Effect Of Concentration Of A Substance On The Rate Of Reaction

1791 Words Sep 14th, 2015 8 Pages
The Effect Of The Concentration Of A Substance On The Rate Of Reaction
Year 9 Chemistry Assignment Term 3

Introduction

The purpose of this experiment was to measure and interpret the effect of a chemical concentration on a reaction rate. A collision theory is a theory proposed by Max Trautz and William Lewis that states: qualitatively explains how chemical reactions occur and why reaction rates differ for different chemical reactions (Wikipedia, 2015). An example of collision theory is when two motor vehicles collide with one another creating a large impact as the particles combine with one another due to the large impact created. A chemical reaction is a process that involves the rearrangement of the molecular and ionic structure of a substance when the interaction of two or more chemicals is compounded to create a new substance (Middle School Chemistry, 2015). An example of a chemical reaction is when a bike begins to rust or when photosynthesis takes place (Uen.org, 2015). The different types of Molars used in the experiment affected the speed of the reactions of the acid. These times varied on the amount of concentration used in the molars. This was shown in the results of the experiment as the 2Molar gave an average time of 23.88 seconds, for the water to decrease to 30 ml in the test tube. The 1Molar gave an average 54.94 seconds to reach 30 ml of water in the test tube, and the 0.5Molar displayed an average time of 3 minutes 13 seconds to reach 30 mL.

A chemical…
Open Document