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Oxygen: Bleaching Powder Solution Heated with a Little Cobalt Oxide at 70–80 °C
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Charlie

21. uMfumfu 2026DE
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Oxygen: Bleaching Powder Solution Heated with a Little Cobalt Oxide at 70–80 °C

Oxygen from bleaching powder, as Thorpe's Dictionary (1913) gives it: a strong solution of bleaching powder with a little cobalt oxide gives a steady stream of oxygen at about 70–80 °C, leaving calcium chloride. The picture: our diagram.
Ophakathi
1 day

Imiyalelo

1

Mix bleaching powder solution with a little cobalt oxide

Make a concentrated solution of bleaching powder and add a small quantity of cobalt oxide. No amounts are given. Ours: in a flask.

Izinto zokwakha zalesi sinyathelo:

Impushana yokwenza mhlopheImpushana yokwenza mhlophe1 as required

Amathuluzi adingekayo:

I-cobalt oxideI-cobalt oxide
AmanziAmanzi
Ibhodlela elinesisekelo esiyindilingaIbhodlela elinesisekelo esiyindilinga
Izibuko Zokuchitheka KwamakhemikhaliIzibuko Zokuchitheka Kwamakhemikhali
2

Heat to about 70–80 °C

Heat to about 70–80 °C, the best temperature for a steady stream of gas. Ours: a water bath.

Amathuluzi adingekayo:

Ibhavu LamanziIbhavu Lamanzi
Ipuleti ElishisayoIpuleti Elishisayo
Ithemomitha YaselabhorethriIthemomitha Yaselabhorethri
3

Collect the gas over water

Ours: lead the gas through a delivery tube into gas jars standing full of water in a pneumatic trough.

Amathuluzi adingekayo:

Ipayipi lengilazi lokudlulisaIpayipi lengilazi lokudlulisa
Ubhavu We-Pneumatic Onezimbiza ZegesiUbhavu We-Pneumatic Onezimbiza Zegesi
AmanziAmanzi

Izinto

1

Amathuluzi Adingekayo

9

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Electrolysis of Water — Splitting the Molecule That Fooled Chemistry for Centuries

Electrolysis of Water — Splitting the Molecule That Fooled Chemistry for Centuries

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