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Rates of Reaction Investigation

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Introduction

Plan The aim of this investigation is to find out the temperatures of which the metals below react with dilute hydrochloric acid, and the metal that produces the most heat is the most reactive and is therefore higher in the reactivity series. Metals: Iron Calcium Zinc Magnesium I predict that Calcium will produce the most heat while reacting with the dilute HCL and is therefore highest in the reactivity series out of the 4 metals. Calcium will then be followed by Magnesium in second, which will produce the second most amount of heat and is therefore second highest in the reactivity series out of the 4 metals. Zinc will follow this because zinc is less reactive than calcium and magnesium I know this from looking at the reactivity series. This means zinc will be third in the reactivity series out of the 4 metals. ...read more.

Middle

+ H2(g) Depending on certain factors the rate that these reactions will take place will either increase or decrease. The factors that may affect the rate of reaction are as follows: � Temperature of the Hydrochloric Acid � Mass of the metals used � Concentration of the Hydrochloric acid � Surface area of the metals used All of these factors will change the rate of reaction because of the Collision Theory. This is a theory that is used to predict the rate of a reaction. The Collision Theory is based on the idea that for a chemical reaction to take place, it is necessary for the reacting particles to collide with each other with enough energy to break or form new bonds between the other particles, which is called a successful collision. If when they collide and they do not have enough energy to break or form new bonds then they will simple bounce of each other, causing an unsuccessful collision. ...read more.

Conclusion

I will then put the same amount of each metal in each polystyrene cup as I and another student do this a fellow class student can activate the button for recording the temperature. I will repeat each experiment so that my results are reliable and reproducible and record all results in a table. When I get my results I can print a graph using the software for the data logger and come to a conclusion. The things that I will need to do to keep my experiment a safe one for myself and other students around me are as follows: � Wear safety goggles as I am using concentrated hydrochloric acid � Care to eyes and the skin besides all the other people is always vital and necessary � Care in using glassware since it is sharp when broken and can cut skin � Safe disposal of reagents and laboratory chemicals � Care when returning all used glassware and equipment at the end of the experiment ?? ?? ?? ?? 1 ...read more.

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