I want to thank your team (Jeff) for finding a new writer when you were unable to reach my existing writer to revise my paper. I appreciate your professionalism and efforts. Thanks
Report (any type)/Brief report
22/09/2021
There is no formula for the molar heat of solution.
You have to do an experiment to determine the heat of solution of a substance.
Experimentally, you dissolve a known amount of the substance in a given mass of the solvent and measure the temperature change.
Then you use the of the solution and the number of moles of the solute to calculate the molar heat of solution.
Example
What is the molar heat of ammonium nitrate if 8.00 g of NH₄NO₃ dissolved in 50.0 g of water in a coffee cup calorimeter causes the temperature to drop by 10.1 °C? Assume that the specific heat capacity of the solution is 4.18 J·°C⁻¹g⁻¹.
Solution
There are two heats involved.
heat of solution of NH₄NO₃ + heat from water = 0
##q_1+ q_2 = 0##
##n = “moles of NH”_4″NO”_3 = “8.00 g NH”_4″NO”_3 × (“1 mol NH”_4″NO”_3)/(“80.0 g NH”_4″NO”_3) = “0.100 mol NH”_4″NO”_3##
##q_1 = nΔH_”soln” = “0.100 mol” × ΔH_”soln”##
##m = “mass of solution” = “50.0 g + 8.00 g” = “58.0 g”##
##q_2 = mcΔT = “58.0 g” × “4.184 J°C”⁻¹”g”⁻¹ × “(-10.1 °C)” = “-2450 J”##
##q_1 + q_2 = “0.100 mol” × ΔH_”soln” – “2450 J” = 0##
##ΔH_”soln” = “+2450 J”https://studydaddy.com/”0.100 mol” = “+24 500 J/mol” = “+24.5 kJ/mol”##
Show more
I want to thank your team (Jeff) for finding a new writer when you were unable to reach my existing writer to revise my paper. I appreciate your professionalism and efforts. Thanks
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