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To celebrate completing this course, you are given another new and imporved Joule calorimeter by your new best friend. You decide to confirm the heat capacity of benzene (C6H6) and procure 10 mol of benzene. The accepted value for the heat capacity (CP) of benzene is 133.1 J·mol-1·K-1.
The data you measure are: work done by paddle wheel = 5324 J; temperature rise of benzene = 4 K.
Assuming that the liquid does not exchange heat with its surroundings, and that the CP and the pressure on the liquid remain constant during the experiment, evaluate your new gift?
(Note to self: need to be careful choosing friends...)
A solution of a weak acid was tested with the indicators used in this experiment the colors observed were violet orange red blue and yello what is the approximate pH of the solution
The latent heat of fusion for sodium is 2.6kJ/mol. How much heat is needed to melt 46g of sodium at its melting point of 98 degree Celcius?
A sample containing 2.40 moles neon gas has a volume of 8.00 L. Assume that the pressure and the temperature remain constant.What is the new volume of gas in liters when a leak allows one-half of the neon atoms to escape?
An oxygen bottle containing a fixed volume oxygen gas has a pressure of 800.00 mm hg and a temperature of 295 k. If the bottle is heated to 328k what will the pressure of oxygen gas be within the bottle and which law will you use to solve it?
Calculate the amount of NH3 and NH4CL required to prepare
What mass of sulfamic acid (H2NSO3H) will you need to use in order for the titration to require 10.00 mL of the NaOH solution. Show all work and calculations.
A 0.45-g sample of aspirin is decomposed into its constituent elements as well as found to contain 0.27 g C, 0.020 g H, and 0.16 g O. Compute the mass percent composition
You dissolve the sample in .550 mL of water and determine that the osmotic pressure of the resulting solution is .107 torr at 35 deg C (760 torr = 1.00 atm). What is the molar mass of the compound?
Calculate: a. kg of pressed beans from stage 1 b. kg of extracted meal from stage 2 c. kg of final meal & wt% protein of it ans: 8723 kg, 8241 kg, & 7816 kg and 44.8 wt% protein.
A series of chemicals were added to some AgNO3(aq). NaCl(aq) was added first to the silver nitrate solution with the end result shown below in test tube 1, NH3(aq) was then added with the end result shown in test tube 2, and HNO3(aq) was added las..
Table below lists absorption values of an FT-IR band at 1530 cm^-1 due to bending vibrations of polyethylene in polyethylene/polybutadiene (PE/PBT) blends.
Which one of the following compounds is the most acidic? Why? A. 1-Phenylethanol B. 2-Phenylethanol C. o-Ethylphenol D. Ethyl phenyl ether E. Nitrobenzene
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