Definieer die term elektroliet - NSC Physical Sciences - Question 8 - 2017 - Paper 2
Question 8
Definieer die term elektroliet.
Aant watter terminal van die voltmeter is die Ag elektrode gekoppel? Skryf neer slegs POSITIEF of NEGATIEF. Gee n rede.
Vir hierdie... show full transcript
Worked Solution & Example Answer:Definieer die term elektroliet - NSC Physical Sciences - Question 8 - 2017 - Paper 2
Step 1
Definieer die term elektroliet.
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Answer
Die term 'elektroliet' verwys na 'n oplossing, vloeistof of opgeloste stof wat elektrisiteit gelei deur die beweging vanione. Dit stipuleer dat die stof in staat is om ione te dissosieer en as geleier van elektriese stroom op te tree.
Step 2
Aant watter terminal van die voltmeter is die Ag elektrode gekoppel?
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Die Ag elektrode is gekoppel aan die POSITIEWE terminal van die voltmeter omdat dit die katode is, waar reduksie plaasvind.
Step 3
Vir hierdie galvaniese sel, skryf neer die:
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Step 4
Die aanwykende lesing op die voltmeter is 2,43 volt.
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Die voltmeter toon 'n lesing van 2,43 V.
Step 5
Nuwe seld vind onder standaard toestande gebeur deur die Ag+/Ag elektrode en Ti3+/Ti elektrode.
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Die nume selproses behels die reduksie van Ag<sup>+</sup> na Ag en die oksidasie van Ti na Ti<sup>3+</sup>, wat met die volgende reaksie aandui: 3 Ag<sup>+</sup> + Ti → 3 Ag + Ti<sup>3+</sup>.
