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It assesses knowledge in subjects relevant to the candidate’s chosen course of study.","tags","utme jamb joint admission matriculation board unified tertiary matriculation examination nigeria africa","version","vip","location",{"_390":391,"_392":393},"type","Point","coordinates",[394,395],9.082,10.3671,"ng","priority",5,"createdOn",1755987353430,"updatedOn","questionsCount",29915,"courseCount",20,"examKey","questionData",{"_369":409,"_410":411,"_412":413,"_278":415,"_416":417,"_263":370,"_418":419,"_420":421,"_110":427},"uJ7GGb7KKSu16BwSM06OazyTIIDeBJ","q","Na₂CO₃ + 2HCI → 2NaCI + H₂O + CO₂. Using the above equation, what volume of carbondioxide, measured at s.t.p is liberated when 53g of sodium carbonate is dissolved in hydrochloric acid?
\n(1 mole of gas occupies 22.4 dm³ at s.t.p)
\n(Na = 23, C = 12, O = 16)","ans",[414],1,"1981","course","chemistry","exp","Na₂CO₃ + 2HCI → 2NaCI +H₂O + CO₂
\n53 gm Na₂CO₃ will therefore liberate (22.4)/(106) x (53)/(1) = 11.2 dm³","opts",[422,423,424,425,426],"44.8 dm³","11.2 dm³","100.1 dm³","3.0 dm³","22.4 dm³",23,"23","initComment","initReply","actionData","errors"]

JAMB - Chemistry (1981 - No. 23)

Explanation

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