(a) Write out the full name of the complex [Fe(OH2)2(NCS)4]-1. (3 pts) (b) Sketch all possible geometric isomers and label each one (e. g. cis, trans, fac, mer, etc). Ignore the internal geometries of ligands; consider them as spheres. Name the point group of each isomer (5 pts)

jdjxnbfb

explanation:

jjfnc fdnxnxx

im pretty sure its b

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