4 g of hydrogen reacts with 20 g of oxygen to form
water. The mass of water formed is
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Answered by
1
total mass of hydrogen and oxygen after reaction is 24 gram and it from the water molecule
zunaimmalik:
no bro the answer is 22.5
Than why you marked it brainliest
by mistake bro
Ok bro
Answered by
5
Here O2 is limiting reagent
Moles of water form = moles of O2
= 1.25 mole
I.e mass of water form = 18×1.25= 22.5 gm
why you don't have the H2 molecules
Because in this reaction O2 is fully used without using full H2 molecule
In this case O2 is limiting
limiting means
It is concept of class 11 which tells that in a reaction the compound whose mole is less will form product equal to its mole
e.g A+B = C Ais 1 mole & B is 0.5 mole here B is limiting so C would form equal toB and some A would be left here B is limiting
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