Monday, May 20, 2019
Silver and Test Tube
Copper- silvery Nitrate Reaction Introduction In this experiment copper wire will be placed in a root word of silver nitrate. This case-by-case replacement reaction will hit a blue solution of copper II nitrate and solid silver. By weighing the reactants onwards the reaction, the mass of silver produced can be predicted. This theoretical pay up can be compared to the actual yield of silver. Purpose Students will compare the theoretical mass of silver with the actual mass of silver from the single replacement reaction between copper and silver nitrate.Materials Copper wire stirring rod 18 x 150 mm test tube silver nitrate, AgN0350 mL graduated cylinder distilled weewee 100 mL or 250 mL beaker Procedure Day 1 1 . Obtain a 30 cm length of bare copper wire, stirring rod, and 18 x 150 mm test tube. coll the copper wire by wrapping It around a glass-stirring rod. stretch the coiled wire until It Is about 2 cm longer than the test tube. Leave wire tightly coiled just about one end a nd stretched out and straighten toward the other compress the wire and record it in the information table to the nearest 0. 01 grams. using weigh paper, weigh out about 1. 5 g of silver nitrate, AgN03. Record the measurement in data table to the nearest 0. 01 grams. (Caution Be careful not to hail any of the silver nitrate, solution or solid, on your skin or clothing. It will react with them. ) 3. footprint about 20 mL of distilled water In a graduated cylinder and pour It Into the test tube. Add the solid silver nitrate tothe water In the test tube. 4 Carefully continue the stlrrlng rod up and down to dissolve the crystals and mix the solution, Take great care not to dig up a holeIn the bottom of the test tube with the stirring rod. Rinse the stirring rod with a excellent amount ot distilled water into the test tube. Place the coiled wire in the silver nitrate solution with the closely coiled end at the bottom of the test tube. Set the test tube into a beaker. 6. Record obse rvations during the next 15 minutes. 7. Set your labeled beaker in the designated area, allowing it to react overnight. Day 2 8. Weigh the 100 mL beaker. 9. Shake the crystals from the copper wire. using a wash bottle, rinse the wire Into he weighed 100 mL beaker. et the wire aside to dry. weigh the copper wire when
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