For Part II, find ΔHrxn (in units of kJ/mol of NaOH) using q = mCsΔT. Recall, that you measured the change in the temperature of the entire system in the calorimeter, so be careful what value you use for “m” (big hint: assume the combined solution has a density of 1 g/mL and use the combined volumes of the two solutions to calculate the mass of the combined solution). Use Cs for water (4.184 J/g C). The above equation allows you to find q. But in order to find ΔHrxn (in units of kJ/mol of NaOH) you must divide q by the total number of moles of NaOH you used (you know the volume of NaOH, and the molarity, from the experiment). You must also divide by 1000 to report as KJ/mol rather than J.
Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.
You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.
Read moreEach paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.
Read moreThanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.
Read moreYour email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.
Read moreBy sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.
Read more