The drain cleaner Drainex contains small bits of aluminium which react with caustic soda to produce hydrogen What volume of hydrogen at `20^(@)C` aand one bar will be released when `0.15 g` of aluminium reacts ? .

The drain cleaner Drainex contains small bits of aluminium which react

1.	The drain cleaner Drainex contains small bits of aluminium which react with caustic soda to produce hydrogen What volume of hydrogen at `20^(@)C` aand one bar will be released when `0.15 g` of aluminium reacts ? .
Answer» `{:(,2A1+,2NaOH+2H_(2)Orarr,2NaA1O_(2),3H_(2)),("Initial moles",(0.15)/(27),-,-,-),("Final moles",-,-,-,(3)/(2)xx(0.15)/(27)):}` `:.` Moles of `H_(2) = (0.15 xx 3)/(2 xx 27) = 8.33 xx 10^(-3)` By `PV = nRT, P =1 "bar" = 0.987` atm `T =20 + 273 =293K` `0.987 xx V = 8.33 xx 10^(-3) xx 0.082 xx 293` `V = 0.2099 litre = 202.9 mL` .

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The drain cleaner Drainex contains small bits of aluminium which react with caustic soda to produce hydrogen What volume of hydrogen at `20^(@)C` aand one bar will be released when `0.15 g` of aluminium reacts ? .

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