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These resources are designed to help you familiarize yourself with the exam format, identify key topics, and practice effectively. Whether you're preparing for the May/June or GCE sessions, our curated materials provide both objective and theory questions to enhance your study sessions.","tags","waec nigeria west africa examination council","version","vip","location",{"_390":391,"_392":393},"type","Point","coordinates",[394,395],9.082,10.3671,"ng","priority",6,"createdOn",1755991949910,"updatedOn","questionsCount",27220,"courseCount",23,"examKey","questionData",{"_369":409,"_410":411,"_412":413,"_278":414,"_415":416,"_263":370,"_417":418,"_110":423},"6ifqFD3BGdi32CYLhqLzv3859mImOk","q","If the solubility of KHCO₃ is 0.40 mole dm^{-3 at room temperature , calculate the mass of KHCO₃ in 100dm³ of the solution at this temperature. [KHCO₃ = 100hmol]\n}","ans",[95],"1999","course","chemistry","opts",[419,420,421,422],"4.0g","10.0g","40.0g","100.0g",25,"25","initComment","initReply","actionData","errors"]

WAEC - Chemistry (1999 - No. 25)

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