What volume of 1.5M solution of KOH would contain 0.045 moles?
A. 67.50 cm³ B. 30.00 cm³ C. 6.75 cm³ D. 3.00 cm³ Correct Answer: Option B – 30.00 cm³
The acid used in electrolysis of water is dilute?
A. HNO3 B. CH3COOH C. H2SO4 D. HCl Correct Answer: Option C – H2SO4
The major source of oxides of nitrogen is from the burning of?
A. coal B. wood C. fuel D. chlorofluorocarbons Correct Answer: Option C – fuel Explanation Nitrogen oxides form when fuel is burned at high temperatures
For a given solute; the concentration of its saturated solution in different solvents are?
A. the same at the same temperature B. different at the same temperature C. the same at different temperature D. constant Correct Answer: Option B – different at the same temperature
If 10.5g of lead (II) trioxonitrate (V) is dissolved in 20cm³ of distilled water at 18°C; the solubility of the solute in mol dm-³ is? [Pb = 207, N = 14, O = 16]
A. 1.60 B. 5.25 C. 16.00 D. 525.00 Correct Answer: Option A = 1.60Products
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