tag:blogger.com,1999:blog-7032511477100034308.post3233536858349597545..comments2023-04-03T20:42:20.310+08:00Comments on EduMission: Chemistry Form Four : Chapter 6 - Electrolysis of copper (II) sulphateAnonymoushttp://www.blogger.com/profile/07849332263990343913noreply@blogger.comBlogger7125tag:blogger.com,1999:blog-7032511477100034308.post-33600260120339450172013-11-16T18:29:52.077+08:002013-11-16T18:29:52.077+08:00during the electrolysis for the copper electrodes ...during the electrolysis for the copper electrodes did you find that there was black specks on the anode? when i did the experiment the anode didnot get lighter.is that normal?<br /><br />BTW could you please provide half equations for the copper electrode experiment, thank youAnonymoushttps://www.blogger.com/profile/11743288766669226838noreply@blogger.comtag:blogger.com,1999:blog-7032511477100034308.post-69594757455417048142013-11-16T18:27:48.850+08:002013-11-16T18:27:48.850+08:00for the copper electrodes could you please provide...for the copper electrodes could you please provide the overall net equation and the two oxidation/reduction half equations?Anonymoushttps://www.blogger.com/profile/11743288766669226838noreply@blogger.comtag:blogger.com,1999:blog-7032511477100034308.post-59067106731956709162013-02-21T00:54:24.728+08:002013-02-21T00:54:24.728+08:00you will get same result as you use carbon as elec...you will get same result as you use carbon as electrodes. Platinum and carbon are inert electrodes which do not react with other substances during electrolysis process.Anonymoushttps://www.blogger.com/profile/07849332263990343913noreply@blogger.comtag:blogger.com,1999:blog-7032511477100034308.post-9692735452939607042013-02-03T07:34:13.072+08:002013-02-03T07:34:13.072+08:00What about copper11sulphate using platinum electro...What about copper11sulphate using platinum electrodesIam Iyzknoreply@blogger.comtag:blogger.com,1999:blog-7032511477100034308.post-65850940536497412802010-07-21T18:19:54.376+08:002010-07-21T18:19:54.376+08:00Oh I see, thank you...Oh I see, thank you...Samuelnoreply@blogger.comtag:blogger.com,1999:blog-7032511477100034308.post-2320302497217118262010-07-13T12:23:43.849+08:002010-07-13T12:23:43.849+08:00Dear Samuel Khor,
Ouestion No. 1:The copper ions ...Dear Samuel Khor,<br /><br />Ouestion No. 1:The copper ions are selectively discharged at cathode to become copper metal. Therefore, it is an atom. <br /><br />Question No.2: It is because I did this experiment in a short time. If you do a bit longer, the intensity of blue colour will fade.Anonymoushttps://www.blogger.com/profile/07849332263990343913noreply@blogger.comtag:blogger.com,1999:blog-7032511477100034308.post-33190509423361053532010-07-12T17:08:09.515+08:002010-07-12T17:08:09.515+08:00Samuel Khor:
During the first experiment that is u...Samuel Khor:<br />During the first experiment that is using carbon electrolyte:<br />1)The Copper metal discharged is an atom or an ion? <br />2)Why doesn't the blue colour of CuSO4 becomes lighter?Anonymousnoreply@blogger.com