How many moles of oxygen (o2) are required to completely react with 27.4 mol of h2 equation: 2h2+> 2h20

Answer : The number of moles of oxygen gas required are 13.7 moles.

Explanation : Given,

Moles of = 27.4 moles

The given balance chemical reaction is:

From the balanced chemical reaction we conclude that,

As, 2 moles of react with 1 mole of

So, 27.4 moles of react with mole of

Therefore, the number of moles of oxygen gas required are 13.7 moles.

in the given question, the partial pressure is calculated by using the ideal gas equation, that is, pv = nrt

here, p is pressure, v is volume = 25 l, n is number of moles = 0.0104 moles, r is gas constant = -0.0821 l.atm / mol.k

t is temperature = 273 k

p = nrt / v

p = (0.0104 mol × 0.0821 l.atm / mol.k × 273 k) / 25 l

= 0.0093 atm