A sample of gaseous water is composed of 2.34 moles. What is the samples volume at STP ?

The sample's volume at STP is 52.416 L.

Explanation:

The STP conditions refer to the standard temperature and pressure. Pressure values at 1 atmosphere and temperature at 0 ° C are used and are reference values for gases. And in these conditions 1 mole of any gas occupies an approximate volume of 22.4 liters.

Then you can apply the following rule of three: if 1 mole of a gaseous sample occupies 22.4 L, 2.34 moles how much volume does it occupy?

Volume= 52.416 L

The sample's volume at STP is 52.416 L.

"standard molar enthalpy:

h2o ( liquid water ) : - 285.8 kj/mole

h2o ( water vapor ) : - 241.8 kj / mole.

δhrxn = - 241. 8 - ( - 285.8 )= -241.8 + 285.8 = 44.0

answer: 44.0 kj"

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