kitti-cat

Topics: Hydrogen, Magnesium, Oxygen Pages: 3 (500 words) Published: December 4, 2013
Procedure:
1. Iron (IIII) and copper (II) sulfate solution.
Fill a small test tube halfway with copper (II) sulfate solution. Add a 2.0 gram iron rod to the solution and observe the reaction.  Observations: When I put the Iron (lll) and cooper (ll) in the test tube I notice that the color change to a darker gray at the beginning. Regarding to the sulfate solution I also notice that its color change in to a clear blue. When they are mixt together the blue solution vanished slowly while its color change in to a reddish brown in the test tube.

2. Lead (II) nitrate and potassium iodide solutions
pour about 2.0 mL of lead (II) nitrate into the test tube. Add 5 to 10 drops of potassium iodide solution to the test tube and record your observations of the reaction. Observations: the two solutions the lead (ll) nitrate and potassium are transparent. But, when the two solutions are combine its color change to a yellow color. While the top of the test tube is like a light yellow but on the bottom of the test tube the yellow is darker.

3. Magnesium metal and hydrochloric acid solution
Place one scoop of magnesium turnings into the test tube. Add hydrochloric acid slowly and observe the reaction. Next, place a burning splint near the mouth of the test tube to test for the presence of hydrogen gas. Observations when its put the magnesium metal and the hydrochloric acid solution it look like many bubbles

Observacion: cuando se pone el metal de magnesio ala solucion de acido clorhidrico se ve como muchas burbujas en la surpeficie del tubo de ensayo como si fuera humo.

Observation: when you put the metal wing magnesium hydrochloric acid solution looks like surpeficie many bubbles in the test tube as if it were smoke.

4. Electrolysis of water
Use a U-tube with electrodes at each end, connected to a battery. Fill the U-tube with water. Turning on the battery, observe the results at each electrode. Next, test for hydrogen and oxygen gas produced at each...
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