ChemistryChemical combinationWAEC
The mass of 0.5 mol of NaOH (Na = 23, O = 16, H = 1) is
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Answer: A. 20 g
Molar mass 40 g/mol × 0.5.
An AdmitMe practice question, written for the WAEC syllabus. Not an official past question.
Chemistry · Chemical combination
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