![The solubility in mol dm−³ of 20g of CuSO4 dissolved in 100g of water at 180°C is [Cu = 64, S = 32, O =16]](https://erudites.ng/wp-content/uploads/2020/06/past-questions-and-answers.jpg)
by Sunday | Oct 15 | Chemistry JAMB
A. 0.13 B. 0.25 C. 1.25 D. 2.00 Correct Answer: Option C – 1.25 Explanation Relative molecular mass of CuSO4 = 64 + 32 + 16 X 4 = 160 The number of moles of CUSO4 = reacting mass/molecular mass = 20/180 = 0.125 100g of water dissolved 0.125m of CuSO4 100g of...
by Sunday | Oct 15 | Chemistry JAMB
A. asbestos dust B. sawdust C. nitrogen (II) oxide D. carbon (II) oxide Correct Answer: Option A – asbestos dust EXPLANATION: The correct answer is A.A carcinogen is any substance, radionuclide, or radiation that is an agent directly involved in causing cancer....
by Sunday | Oct 15 | Chemistry JAMB
A. acidity B. alkalinity C. chloride content D. nitrate content Correct Answer: Option D – nitrate content
by Sunday | Oct 15 | Chemistry JAMB
A. magnesium and silver B. calcium and magnesium C. sodium and potassium D. calcium and sodium Correct Answer: Option B – calcium and magnesium
by Sunday | Oct 15 | Chemistry JAMB
A. neon and hydrogen B. nitrogen and helium C. helium and neon D. neon and nitrogen Correct Answer: Option A – neon and hydrogen
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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