HYPOTHESIS:
as the volume of potassium chromate (VI) solution used increase the height of the yellow precipitate increase until it reach a maximum height.
VARIABLES:
manipulated: volume of 0.5 mol dm potassium chromate (VI) solution
constant: volume of 0.5 mol dm lead (II) nitrate solution
respond: height of precipitate
Data and observation:
Test tube | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| 5.00 | 5.00 | 5.00 | 5.00 | 5.00 | 5.00 | 5.00 |
| 1.00 | 2.00 | 3.00 | 4.00 | 5.00 | 6.00 | 7.00 |
| 0.7 | 1.5 | 2.6 | 3.7 | 4 | 4 | 4 |
| colourless | colourless | colourless | Light-orange | Light-orange | orange | orange |
Pls Draw Graph also...
Conclusion:
the height of the yellow precipitate increase until it reach a maximum height, when the volume of potassium chromate (VI) solution used is increased.
interpreting data and discussion we will give it in thursday because we didn't know the answers.....i will ask teacher to give the answers
meanwhile pls do this experiment the one you don't know how to do just leave blank and bring it on thursday!!
REMEMBER TO BRING PLEASE AND THANK YOU!!!!! whoever pass up at 30 October can get extra marks for chemistry exams.......
*the report pass up on friday cannot get extra marks already.....
the ones that i do not have their email is
-jeung han
-daniel
-fadhli
-faiz
-sanjjiev
-win keong
-azureen
-farah liyana and dalila
-nadiah
if anyone has their contact please let them know!!
Report prepared by Mei Kuan
Post by Jiayin
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