An Investigation Into The Volume Of Gas Produced When You React Hydrochloric Acid And Marble Chips - Plan, Evaluation And Analysis

Plan. In my investigation I impart be check how changes in sultry concentration (moles) effect the rate of reply with stain chips. I will measure the rate of reception by measuring the flatulency produced when the reply occurs. My variable will be acid concentration , and I will establish every other aspect of my experiment the same. (Volume of acid, conical flaskful use, volume of water in collection basin.) This will assure fair and accurate testing. Before I conducted my experiment I need to decide which size marble chips to use. We have 3 varieties: small (2-6mm) medium (6-9mm) and large (9-12mm). So I conducted a feeler investigation to perfect my method, check for flaws and see which chips created the to the last degree amount of problems. However before I conducted precedent or actual work I needed to steer how more marble chips to use (grams) I employ the following(a) numeration:CaCO3 + 2HCL CaCl + CO2 +H20? 50mlThe calculation above i s the symbol equivalence for the reception that take place in my experiment. I careful the sess of CaCO3 in three steps:1. moles: moles = concentration X cm³1000: 2 X 501000= 0.1 moles/dm³2. proportionality: 1CaCO3 : 2 HCL0.05 : 0.13. Mass : (mass = moles X Mr)0.05 X 100 =5gTherefore 50ml of Hydrochloric acid dissolves 5g?s of calcium carbonate.

However to maximize gas ware we used an excess of marble chips. So the weight of chips weused for both(prenominal) my preliminary work and my real experiment was 5.5g?s. So I used 50ml of 2 molar/dm³ hydrochloric acid and 5.5g?s of marble chips in my preliminary investigation. I measured the gas produced fro m the reaction every minute for five minutes! . These were my results:Size (mm).1 min.2 min.3 min.4 min.5 min. base (2-6)97 ml132 ml205 ml239 ml315 mlMedium (6-9)70 ml118 ml180 ml216 ml273 mlLarge... If you unavoidableness to get a full essay, order it on our website: OrderEssay.net

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