1 (a) A gas container has 50cm³ of 0.3 mol of nitrogen and 0.5mol of hydrogen gases at s.t.p. Calculate the partial pressures of 60cm³ of the nitrogen and hydrogen gases at 27°C. (5 mks) (b) 70cm³ of carbon(II)oxide are sparked with 180cm³ of air containing 21% oxygen according the reaction: 2CO(g) + O₂(g) 2CO2(g). If all the volumes are measured at s.t.p, calculate the volume of the remaining gases after sparking(reaction). (5 mks) PA
2 (a) State Gay-Lussac's law of combining volumes.
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