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Press enter to begin your search Reactivity of Metals: To investigate and see the reaction of four metals- magnesium, zinc, aluminium and iron with copper sulphate to find out which one is the most reactive and which one the least reactive. The reaction rate or rate of reaction for a reactant or product in a particular reaction is intuitively defined as how fast a reaction takes place.
For example, the oxidation of iron under the atmosphere is a slow reaction which can take many years, but the combustion of butane in a fire is a reaction that takes place in fractions of a second.
Need essay sample on Reactivity of Metals: This reaction is carried out using the metal powder given and a weak compound such as copper sulphate in which the metal ion is lower than the metal powder in the reactivity series. Therefore in this reaction, a more reactive metal will displace the metal ion in the compound and thus it will be separated.
When a displacement reaction occurs, heat energy is given out which means that the reaction is exothermic.
In theory, when a more reactive metal takes part in a displacement reaction, the reaction is more vigorous and exothermic. This happens because the compound on the reactants side is quite unstable and thus breaks up easily and so much energy is not used up.
The metal powder easily forms a compound with the non-metal ion of the compound and more energy is given out. When the total energy given out is more than the energy used, the reaction is exothermic and its product is a very stable compound. For this experiment, the four metal powders given are magnesium, zinc, aluminium and iron.
They have to take part in a reaction with copper sulfate which is an aqueous solution and its metal ion is copper. The chemical equations for the reactions that will take place are as follows: It is seen that Copper is lower than magnesium, aluminium, zinc and iron in the reactivity series, which means that each of them will displace copper from copper sulphate as it is the least stable out of all and each of the four powders will form a more stable compound with sulphate after the reaction takes place.
When an unstable compound is broken, not much energy is used up and thus it is expected that all four reactions will be exothermic.
The rise in temperature will become lesser in the order of reactivity and therefore the reaction between rion and copper sulphate will be the least reactive and will take the longest time for the reaction to complete. Moreover, it will be the hottest when the reaction between magnesium and copper sulphate takes place.
Graph of expected results rise in temperature: The rise in temperature for each of the metal powders to be used is shown after a period of 2 minutes for each reaction. The graph above shows that the reaction with magnesium is the fastest whereas the reaction with iron is the slowest.
Moreover we also see that the reaction with magnesium took the shortest time to complete. Mg, Al, Zn and Fe.Pre-lab Questions Michelangelo used fresco painting when he painted the Sistine Chapel. Fresco painting involves most of the types of chemical reactions you just studied.
Chemistry Lab Report: Chemical Reactions. Pre-lab Questions. Light a butane lighter and observe the flame. (The ignition of the flame is a reaction between butane and. Download KPSC KAS Prelims Answer Key KPSC Prelims Answer Key & KPSC Cut Off prepared by top IAS Institutes for KPSC Prelims Exam is and in to a was not you i of it the be he his but for are this that by on at they with which she or from had we will have an what been one if would who has her.
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The purpose of the lab was to determine the molecular mass of Butane, and this was done by using the ideal gas law (PV=nRT). The materials used were: match, funnel, bucket, cylinder, thermometer, lighter, scale, and a wooden flynt. lab report Essay ANATOMY & PHYSIOLOGY CLASS: WRITING LAB REPORTS The following is an explanation of the format that is to be used for writing lab reports.
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There will be lab activities for each Chapter in the textbook.