What would happen if you were to gather a mole(unit of measurement)of moles in one place? No right answer just make it smart please :)

Explanation:

A mole is a unit of substances just like a dozen denotes 12 materials.  

 A mole is made up of 6.02 x 10²³atoms.

This unit helps to make chemical calculations very easy.

Depending on the number of moles you aggregate, the matter formed will be diverse.

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