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EXPERIMENT OF THE LAW OF CONSERVATION OF MASS | CHEMISTRY laboratory REPORT Aim: To observe the law of conservation of ward-heeler use the reaction of atomic number 11 change, atomic number 20 chloride and sulphuric hot and to show the importance of careful measurements when using instruments, namely, an electronic balance. machine: research lab Balance 3 meritless Stoppers (to fit campaign tubes and flaskful) one hundred twenty-five mL Conical Flask 3 Labels Safety Goggles Laboratory Coat 10 mL Graduated Cylinder 2 Test tubes (13 × 100 mm) 10.0 mL atomic number 11 Carbonate (1M) 3.0 mL Calcium Chloride (1M) 3.0 mL sulphuric Acid (1M) Method: Sodium carbonate was measured in a graduated cylinder, accordingly transferred into a clean, dry Erlenmeyer flask and stopper with a prophylactic stopper. Calcium chloride and sulfuric pane of glass were placed in separate test tubes which were stoppered with sorry stoppers and designate. The sto ppered flask, two test tubes and an empty beaker to hold the test tubes were placed on an electronic balance and the stool was put down and labeled stilt a. The calcium chloride solution was added to the sodium carbonate solution and the flask was swirled. The flask and empty beaker were stoppered and replaced on the electronic balance with the sulfuric blistery and the mass was save and labeled mass b.

The sulfuric acid was added to the flask. The flask was swirled without the rubber stopper and left to cool. The three containers, rubber stoppers and circumscribe were placed on the electronic balanc e and the mass was preserve and labeled mas! s c. Results: Mass aMass bMass c 194.60g194.78g194.69g Table 1.0 When sodium carbonate and calcium chloride were combined, the resulting substance was tangled and became cloudy. After a hardly a(prenominal) minutes, a grey pulverize settled on the perforate of the flask and the aqueous dowery became clear again. After sulfuric acid was added to the products of the first reaction, frothiness was observed. Additionally, the substance became cloudier....If you want to bring forth a lavish essay, order it on our website: OrderCustomPaper.com

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