Waec Model Questions Vol1 2017 Chemistry Question 15
Practice objective / multiple choice question 15 from the 2017 Waec Model Questions Vol1 Chemistry examination.
A wastewater stream flows at 2000 L min⁻¹ and contains nitrate at 45 mg L⁻¹. The treatment plant removes 60 % of the nitrate. The treated effluent is then mixed with a clean water stream in a 3 : 1 ratio (treated : clean). (a) What is the nitrate concentration (in mg L⁻¹) in the final mixed effluent? (b) How many kilograms of nitrate are removed per hour by the plant?
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About This Question
This is Waec Model Questions Vol1 2017 Chemistry Question 15. It is a objective / multiple choice question from the 2017 Waec Model Questions Vol1 Chemistry examination.
Difficulty level: Hard .
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