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Hcl Lab Report

1548 Words7 Pages

The purpose: To investigate the rate of the reaction between Magnesium and different concentrations of HCL. Hypothesis: If the concentration of HCL increases, the rate of the reaction between HCL and Magnesium decreases. Scientific Explanation: In a reaction, particles of two different reactants react together to form a product. The reaction only takes place on account of two things, if the particles collide, and if the collision has enough 'activation energy'. The two reactant particles, in this case magnesium particles and hydrochloric acid particles, must collide with each other on the correct 'collision course'. If this does not occur then no chemical reaction will take place. The reaction must also have sufficient energy, this can be …show more content…

“Concentration is measured in moles (M) per cubic decimeter; it shows us how man particles there acre dissolved in a substance. Therefore, 1M of hydrochloric acid dissolved in one cubic decimeter of water is the same concentration as 1M of sodium chloride dissolved in one cubic decimeter of water. If the amount of moles per cubic decimeter doubles from 1M to 2M, then so does the concentration double? “ So as the concentration of HCL increases, the rate of the reaction decreases because of the amount of energy that is included in the reaction(it increases as the HCL concentration …show more content…

The difference between the rates of the reaction’s when 1 mole was inserted, and when the 3 mole was inserted is 118.49 seconds. This is the data the proves that my hypothesis is correct, this is because as the amount of mole increase, the amount of energry included in the reaction is more. for example, take the 1 mole of HCL, the 2 mole of HCL, and the 3 moles of HCL. The 1st mole of HCL has more particles than the 2nd mole of HCL, and thus when the 1st mole reacts with HCL, the rate of the reaction will be more because there will be more less energy in the reaction of HCL and Mg, compared to the 2nd mole of HCL and it reaction with Mg, (the 2 moles of HCL has more energy than the 1 mole), so hence, there will be more energy in the reaction . Both mole of HCL(the 2 moles of HCL and the 1 mole of HCL) have less energy , and thus when the 3 moles of HCL reacts with Mg, there is even more energy between the Mg and the HCL particles, so hence the rate of the reaction will be faster. Sources of Error: What could have been done is more trials to make sure

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