1.

In a process for producing acetic acid, oxygen gas is bubbledinto acetaldehyde containing manganesed (II) acetate(catalyst under pressure at 60^(@) C . 2 CH_(3) CHO + O_(2) to 2CH_(3) COOHIn a laboratorytest of thisreaction20 g of CH_(3) CHO and 10 g of O_(2) were putinto a reaction vessel . (a)Howmanygrams of CH_(3) COOH can be produced ?(b) Howmany grams of the excess reactant remain after thereaction is complete ?

Answer»

Solution :`{:(" "(20//40)""(10//32)""0". . . .initial mole" ),(2 CH_(3)CHO""+O_(2)""to ""2 CH_(3) CO OH),( ""0""(0.3125-0.2272)""0.4545". . . . final mole" ),(""=0.0853):}`
(a) `CH_(3) CHO`is the limitingreagent and hence
amount of `CH_(3) C O O H` produced ` = 0 . 4545 xx 60 G`= 27 . 27 g
(b)Amount of `O_(2)" LEFT " = 0 . 853 xx 32 `
= 2 . 73 g


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