If 225 g of sugar (180.18 g/mole) is dissolved in 4.5 L of solution, what is the molarity of the solution?

answer: you could do some invislibe ink.

explanation: i will tell you how to if u answer my question.

i think it's c. i'm not sure but i think so.

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

answerspecific gravity;