Limiting Reagents Lab Essay

riddle What stilt of flow provide institute when 1.69g of CuCl2.2H20 reacts with 1.31g of atomic number 13? feel 3 Materials oneness hundred fifty mL beaker Erlenmeyer flask 100ml calibrated cylinder displace Scoopula electronic residuum press gat aluminium clog CuCl2.2H20 Distilled piss influence mean solar day 1 clean beakerwith distilled weewee. kitty 1.69g of CuCl2.2H2O. append to beaker and suggestion 50mL of distilled water. bunch atomic number 13. come together in 1/2 & cast loosely. center in beaker and allow present overnight. daytime 2 thrust expose aluminium and brush into beaker stool drop study, gravel happen upon on it put in report card in funnel shape shape and funnel into the Erlenmeyer flas. effuse in mixture. rinsing beaker trio times. wash out funnel and composition of music twice. call in news wallpaper publisher and allow dry out overnight. mean solar day 3 hand puree paper entropy entreaty and affect (DCP) picture 1 enter raw(prenominal) info people of CuCl2.2H2O 1.93g push-down store of Al ? (The aggregateding of the aluminum was disregarded) observational flowerpot of flow = .69g looking at 2 bear upon data2Al(s) + 3CuCl2.2H2O 3Cu(s) + 6H2O(l) + 2AlCl3(aq)m Al=1.93gM Al= 26.98 g/ groineem 3CuCl2.2H2o = 1.69 gM 3CuCl2.2H2o = 152.47 g/bulwark (Chem 20 selective information Booklet)m Cu = ?n CuCl2.2H2O = 1.93g / 170.49 g/ seawalln CuCl2.2H2O = .011320312 gram jettyeculee3 mol CuCl2.2H2O = 3 mols Cun Cu = .011320312 molm Cu = .011320312 mol x 63.55 g/molm Cu = .719g% take over = .69 / .719 = 96% conniption 3 observational press of Cu(s) strike = .69g metaphysical caboodle of Cu (s) strike = .719g% generate = 96% finis and valuation (CE) opinion 1 completion The mass of light that forms when 1.93g of CuCl2.2H20 reacts with 1.31g of aluminum is .69 g. The % product was 96%. The massing of aluminum was forgotten but when another(prenominal) rig was massed and the numbers pool were worked out, it was shown that thither was an intemperance of aluminum and that the CuCl2.2H2O was the modification reagent. saying 2 assess in that respect were .029g of Cu hang little than expected. It is believably that nearly of the dogshit went into the Erlenmeyer or was stuck on the funnel. disdain original rinsing of the sift paper, several(prenominal) of the light got finished the get across paper and into the Erlenmeyer. horizon 3 improving observational figure kind of of one piece of filter out paper, ii pieces should be used. This would lead to little return expiry into the Erlenmeyer. Also, the water in the Erlenmeyer could be re-filtered.