Type the correct answer in the box . Express your answer to three significant figures . Carl has an empty 35.0 - liter tank that he wants to fill with 16.3 moles oxygen gas . The gas in the tank will have a temperature of 25 C surrounding the is standard pressure , what will be the gauge pressure of the oxygen in the tank in atmospheres ? The oxygen in the tank will have a gauge pressure of atmospheres?

answer : third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol

explanation :

let us write down the given equations

equation 1 :

equation 2 :

equation 3 :

let us use hess's law to find out which 2 equations can be added to get the third equation.

let us reverse equation 2 and multiply it by 2. the new equation that we get is,

equation 4 :

let us add equation 1 & 4

the above equation is similar to equation 3 but has different value for dhrxn.

therefore third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol