a simple gchem q

[gomawum]

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kaplan problem:

If stoichiometric quantities of x and y are placed in a sealed container with volume = 30L, what volume of z will be produced?

x + y -> Z

then isn't it 30/2=V/1?
but the answer was 30/3=V/1
'Since complete reaction means that 3 moles becomes 1 mole'

what makes the initial quantities of mole 3 not 2?

 

[doc toothache]

kaplan problem:

If stoichiometric quantities of x and y are placed in a sealed container with volume = 30L, what volume of z will be produced?

x + y -> Z

then isn't it 30/2=V/1?
but the answer was 30/3=V/1
'Since complete reaction means that 3 moles becomes 1 mole'

what makes the initial quantities of mole 3 not 2?

Stoichiometrically there are 3 moles present in the container, theoretically each occupying 1/3 of the volume. The explanation given may be erroneous.