6.03 Calorimetry Lab
First, prepare a data table. Record what you see throughout the laboratory activity.
Your teacher will demonstrate for the class the reaction of metallic copper with concentrated nitric acid, HNO3. This must be done in the fume hood. (Caution: Avoid breathing poisonous gases. Avoid contact of skin with nitric acid. It burns skin and clothing.) One student will be asked to feel the side of the demonstration beaker and report to the group. The products formed are copper(II) nitrate solution, Cu(NO3)2(aq), and nitrogen dioxide gas, NO2(g).
A solution of copper(II) nitrate was prepared earlier. One of your thin-stem pipets contains this solution. Transfer all of the solution to your labeled test tube.
Another thin stem pipet contains sodium …show more content…
(Caution: Avoid contact of both skin and clothing with hydrochloric acid.) Tap or stir to mix. This new product is copper(II) chloride solution, CuCl2(aq).
Add the precut piece of aluminum wire to the test tube. (The wire should be bent like a fish hook to hook over the top of the test tube.) Place the test tube in a cold water bath. This reaction is very fast! (Instead, your teacher may tell you to run cold water over the outside of the test tube. Be sure to use a test tube holder to hold the test tube since the reaction gives off considerable heat.) The products forming in this step are hydrogen gas, H2(g), aluminum chloride solution, AlCl3(aq), and metallic copper, Cu(s).
When the reaction is finished, remove and discard the liquid.
Wash the solid with half a pipet of distilled water. Discard the liquid.
Wash the solid again with half a pipet of fresh distilled water, and filter.
Use tweezers to remove any leftover pieces of aluminum wire. Observe the final product.
Take the filter paper with your product to the fume hood. Your teacher will test a small sample of your product with concentrated nitric acid.
Clean pipets, test tube, and …show more content…
Your teacher will test a small sample of your product with concentrated nitric acid.
Clean pipets, test tube, and funnel.
Wash hands thoroughly before leaving the laboratory.First, prepare a data table. Record what you see throughout the laboratory activity.
Your teacher will demonstrate for the class the reaction of metallic copper with concentrated nitric acid, HNO3. This must be done in the fume hood. (Caution: Avoid breathing poisonous gases. Avoid contact of skin with nitric acid. It burns skin and clothing.) One student will be asked to feel the side of the demonstration beaker and report to the group. The products formed are copper(II) nitrate solution, Cu(NO3)2(aq), and nitrogen dioxide gas, NO2(g).
A solution of copper(II) nitrate was prepared earlier. One of your thin-stem pipets contains this solution. Transfer all of the solution to your labeled test tube.
Another thin stem pipet contains sodium hydroxide solution, NaOH(aq). (Caution: Avoid contact with sodium hydroxide.; it burns skin.) Add this slowly to the test tube. This reaction may give off heat. (In other words, it may be exothermic.)
Tap the tube firmly to mix or use a stirring
Your teacher will demonstrate for the class the reaction of metallic copper with concentrated nitric acid, HNO3. This must be done in the fume hood. (Caution: Avoid breathing poisonous gases. Avoid contact of skin with nitric acid. It burns skin and clothing.) One student will be asked to feel the side of the demonstration beaker and report to the group. The products formed are copper(II) nitrate solution, Cu(NO3)2(aq), and nitrogen dioxide gas, NO2(g).
A solution of copper(II) nitrate was prepared earlier. One of your thin-stem pipets contains this solution. Transfer all of the solution to your labeled test tube.
Another thin stem pipet contains sodium …show more content…
(Caution: Avoid contact of both skin and clothing with hydrochloric acid.) Tap or stir to mix. This new product is copper(II) chloride solution, CuCl2(aq).
Add the precut piece of aluminum wire to the test tube. (The wire should be bent like a fish hook to hook over the top of the test tube.) Place the test tube in a cold water bath. This reaction is very fast! (Instead, your teacher may tell you to run cold water over the outside of the test tube. Be sure to use a test tube holder to hold the test tube since the reaction gives off considerable heat.) The products forming in this step are hydrogen gas, H2(g), aluminum chloride solution, AlCl3(aq), and metallic copper, Cu(s).
When the reaction is finished, remove and discard the liquid.
Wash the solid with half a pipet of distilled water. Discard the liquid.
Wash the solid again with half a pipet of fresh distilled water, and filter.
Use tweezers to remove any leftover pieces of aluminum wire. Observe the final product.
Take the filter paper with your product to the fume hood. Your teacher will test a small sample of your product with concentrated nitric acid.
Clean pipets, test tube, and …show more content…
Your teacher will test a small sample of your product with concentrated nitric acid.
Clean pipets, test tube, and funnel.
Wash hands thoroughly before leaving the laboratory.First, prepare a data table. Record what you see throughout the laboratory activity.
Your teacher will demonstrate for the class the reaction of metallic copper with concentrated nitric acid, HNO3. This must be done in the fume hood. (Caution: Avoid breathing poisonous gases. Avoid contact of skin with nitric acid. It burns skin and clothing.) One student will be asked to feel the side of the demonstration beaker and report to the group. The products formed are copper(II) nitrate solution, Cu(NO3)2(aq), and nitrogen dioxide gas, NO2(g).
A solution of copper(II) nitrate was prepared earlier. One of your thin-stem pipets contains this solution. Transfer all of the solution to your labeled test tube.
Another thin stem pipet contains sodium hydroxide solution, NaOH(aq). (Caution: Avoid contact with sodium hydroxide.; it burns skin.) Add this slowly to the test tube. This reaction may give off heat. (In other words, it may be exothermic.)
Tap the tube firmly to mix or use a stirring