Radiation and matter interact and leave some characteristics features (absorbance/transmittance) of the matter in the spectrum, briefly explain how matter-radiation interaction would produce different spectroscopic modalities of. Also mention what parameters would it be involved in generating spectra?

your answer would be a. 12.5 kg

the maximum mass of nh3 is nh3 in grams

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