Introduction: I write this lab report on May 26, 2014. I write this because we need to write a lab report for every lab we finished in the lab skill activity.
Conclusion: The hardest part of this assignment is to write down some scientific words about chemistry material. I do well on write down every procedure we need to do in this lab. I can improve by using some graphs to show the conclusion. I learn the format of a chemistry lab report after finishing this lab report.
Lab Report (Drew, 2014/5/26)
Aim: Producing the Hydrogen by chemical reaction of hydrogen chloride and magnesium
Material:
1. 200 ml for hydrogen chloride liquid
2. One 4 cm magnesium rod and one 8 cm magnesium rod
3. Dropper
4. 3 graduated cylinder
5. Tweezers
6. Duct
7. Water channel
8. Glass cover
9. 2 cork with hole for duct connecting
10. A box of matches
11. 2 test tube
12. Lighter
Method:
Lab procedure:
1. Make sure all the material is ready to start the lab
1) The corks are connected with duct
2) Put enough water in the water channel (more water than cover the whole graduated cylinder)
3) Put 200 ml of hydrogen chloride into one of the graduated cylinder
4) Get water into 2 of graduated cylinder (try best to make they filled with water and with no air inside)
5) Put glass cover horizontally on the graduated cylinder and put it upside down in the water channel
6) Put both duct in the water near each of the graduated cylinder
2. Use tweezers to put 4 cm magnesium rod into one test tube and another 8 cm magnesium rod into another test tube
3. Use dropper to add 100 ml hydrogen chloride liquid for each test tube
4. Close the test tube with cork and hold the duct inside the water
5. Look at the duct in the water, after seen some bubble come out of the water, take the glass cover off the graduated cylinder and put duct inside it (same way for another test tube and another graduated cylinder)
6. Write down the air that is produced in the whole process by looking at the air part of both graduated cylinder after there is no more bubbles come out throughout the duct
7. Use glass cover to cover both of the graduated cylinder and take them out of water channel
8. use tweezers to hold the matches, use lighter to fire it and put it near the glass cover of graduated cylinder
9. Take the glass cover down and find what happen
Caution:
1. Be careful with all the glass material (duct, water channel, graduated cylinder, glass cover, test tube)
2. Be careful with the fire (the matches)
3. Be careful with the hydrogen chloride (don’t let it fall on skin, don’t smell it, don’t drink it, don’t put eyes near it)
4. Be careful for sharp part of tweezers
5. Be careful not use too much power to push on the cork for connecting the test tube
6. Don’t smell the air that is produced
7. Don’t use hand to hold the matches near the air that is produced
8. Be careful when put matches near the air that is produced
Conclusion: we can hear an small explosive sound after we put the matches near the air we produced. Thus, the air we produced is hydrogen.
Aim: Producing the Hydrogen by chemical reaction of hydrogen chloride and magnesium
Material:
1. 200 ml for hydrogen chloride liquid
2. One 4 cm magnesium rod and one 8 cm magnesium rod
3. Dropper
4. 3 graduated cylinder
5. Tweezers
6. Duct
7. Water channel
8. Glass cover
9. 2 cork with hole for duct connecting
10. A box of matches
11. 2 test tube
12. Lighter
Method:
Lab procedure:
1. Make sure all the material is ready to start the lab
1) The corks are connected with duct
2) Put enough water in the water channel (more water than cover the whole graduated cylinder)
3) Put 200 ml of hydrogen chloride into one of the graduated cylinder
4) Get water into 2 of graduated cylinder (try best to make they filled with water and with no air inside)
5) Put glass cover horizontally on the graduated cylinder and put it upside down in the water channel
6) Put both duct in the water near each of the graduated cylinder
2. Use tweezers to put 4 cm magnesium rod into one test tube and another 8 cm magnesium rod into another test tube
3. Use dropper to add 100 ml hydrogen chloride liquid for each test tube
4. Close the test tube with cork and hold the duct inside the water
5. Look at the duct in the water, after seen some bubble come out of the water, take the glass cover off the graduated cylinder and put duct inside it (same way for another test tube and another graduated cylinder)
6. Write down the air that is produced in the whole process by looking at the air part of both graduated cylinder after there is no more bubbles come out throughout the duct
7. Use glass cover to cover both of the graduated cylinder and take them out of water channel
8. use tweezers to hold the matches, use lighter to fire it and put it near the glass cover of graduated cylinder
9. Take the glass cover down and find what happen
Caution:
1. Be careful with all the glass material (duct, water channel, graduated cylinder, glass cover, test tube)
2. Be careful with the fire (the matches)
3. Be careful with the hydrogen chloride (don’t let it fall on skin, don’t smell it, don’t drink it, don’t put eyes near it)
4. Be careful for sharp part of tweezers
5. Be careful not use too much power to push on the cork for connecting the test tube
6. Don’t smell the air that is produced
7. Don’t use hand to hold the matches near the air that is produced
8. Be careful when put matches near the air that is produced
Conclusion: we can hear an small explosive sound after we put the matches near the air we produced. Thus, the air we produced is hydrogen.