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 one of the objective questions from the 2017 Waec Model Questions Vol1 Chemistry examination.
Difficulty level: Hard .
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