Stoichiometry
What fraction of the total pressure is exerted by oxygen, if equal weights of oxygen and methane are mixed in an empty vessel at 25°C?

43864
43833
43832
L/3 x 298/273

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Stoichiometry
A metal oxide is reduced by heating it in a stream of hydrogen. After complete reduction, it is found that 3.15 gm of the oxide has yielded 1.05 gm of the metal. It may be inferred that the

Equivalent weight of the metal is 8
Equivalent weight of the metal is 4
Atomic weight of the metal is 4
Atomic weight of the metal is 2

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