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|Jamb'18: Share What You Think Others should know in particular Subject(s) by Highbhee(m): 2:32pm On Mar 05, 2018|
As we all know you can't Read All,let lift some burden by sharing What you think your colleagues should know...
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Related Jamb question
Collection of gases
Non-metals and their compounds
Gases heavier than Air are collected by Downward delivery/Upward displacement
;Those lighter than Air are collected by upward delivery/downward displacement..
Unlike solids and liquids, at least ideally, a mole of any gas at standard conditions has a volume of 22.4 liters. Since air is 78% nitrogen (Mol. wt. 28) and 21% oxygen (mol. wt. 32) air itself has an average mol. wt. of around 29 (I’m too lazy to do the math, but you can). So any gas that has a higher molecular weight than that would be heavier than air. Ar is 40, CO2 44, etc.
Which of these gases is collected by upward delivery
PS:this is method we use to collect gases soluble in water
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