High School Suppose 'A' is a liquid aromatic compound with molecular weight 78 and burns with sooty flame. a. Give the name of the compound 'A' b. write the molecular structure of 'A' C. What is the product when 'A' is treated with ? i. conc. HNO3 with conc. H2SO4 as catalyst ii. Halogen (cl2)in presence of sunlight and mention the use of the product obtained​

answer: mole of the gas

answer: mole of the gasexplanation:

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