![Calculate the quantity of electricity in coulombs required to liberate 10g of copper from a copper compound [Cu=64, F = 96500 Cmol-1]](https://erudites.ng/wp-content/uploads/2020/06/past-questions-and-answers.jpg)
by Sunday | Sep 17 | Chemistry JAMB
A. 32395.5 B. 30156.3 C. 60784.5 D. 15196.5 Correct Answer: Option B = 30156.3 Explanation Cu → Cu²+ + 2e 64g Cu requires 2 x 96500 coloumbs 10g Cu requires x columbs x = (10x2x96500)/64 =30156.3
by Sunday | Sep 17 | Chemistry JAMB
H2O (g) + C (s) → H2(g) + CO(g) A. CO(g) B. C(s) C. H2O(g) D. H2 (g) Correct Answer: Option C – H2O(g)
by Sunday | Sep 17 | Chemistry JAMB
Zn(s) + CuSO4(aq) → ZnSO4(aq) + Cu(s) A. 0 to + 4 B. 0 to + 2 C. + 1 to + 2 D. + 1 to + 3 Correct Answer: Option B = 0 to + 2 Zinc was oxidized, hence it lost 2e-
by Sunday | Sep 17 | Chemistry JAMB
A. Sodium tetrahydroxozincate (ll) B. Potassium hydrogentetraoxosulphate (lV) C. Sodium trioxocarbonate (lV) D. Zinc chloride hydroxide Correct Answer: Option B – Potassium hydrogentetraoxosulphate (lV)
by Sunday | Sep 17 | Chemistry JAMB
A. log10[OH-] B. log 101/[H3O+] C. log10[H3O+] D. log101/[OH -] Correct Answer: Option B = log 101/[H3O+]
by Sunday | Sep 17 | Chemistry JAMB
A. purple B. pink C. yellow D. orange Correct Answer: Option A – purple
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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