Description: Lovastatin, also known as Mevacor, is a drug made by Merck Pharmaceuticals. It is used to lower cholesterol. Instructions: For this presentation, your job in this presentation is to research the drug lovastatin and walk the audience through the cholesterol biosynthesis and how lovastatin inhibits high cholesterol. If lovastatin goes through any structural changes before becoming active, please discuss this. Feel free to use images from the book or the internet to illustrate your point. Presentations should be around 5-10 minutes.

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

i believe the answer is three water molecules