Frazer Corp sells several products. Information of average revenue and costs is as follows: Selling price per unit $30.00 Variable costs per unit: Direct material $5.50 Direct manufacturing labor $1.00 Manufacturing overhead $0.85 Selling costs $2.70 Annual fixed costs $135,000 If the company sells 18,000 units and decides to lower its selling price by 14.25%, the operating income is reduced by: .

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

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explanation:

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