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Rates of Reaction - Molarity.
Member rating: No Rating | Words: | Submitted: Mon Jan 05 2004
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Chemistry Coursework - Rates of Reaction - Molarity (Concentration) Aim: to find out if the concentration of HCl affects the amount of hydrogen gas given off when a magnesium strip is added. Apparatus: Gas syringe - to take all the gas from the reaction and measure it Test tube - to hold the two reactants Measuring cylinder - to measure amount of water and acid Stop watch - to time the reaction Delivery tube - to deliver the hydrogen into the gas syringe Ruler + Scissors - to measure and cut the magnesium Reactants: Magnesium strip Hydrochloric acid 2HCl + Mg H2 + MgCl2 Preliminary Work: From preliminary work I have found out that using 20 cm3 of acid and using 2 cm of magnesium for 1 minute gives off sufficient gas to measure accurately and I also found that for the molarity I should not go lower than 0.6 as there of gas given off will be too...
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