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Problem- Determine the final state and temperature of 100g of water at 25 degrees Celsius after 50 kg of heat are added to it.
I got 31.14 KJ so far and I have subtracted it from 50.0 kg to get 18.6 Kg but then I am stuck.
Please show how you obtained the answer
Determine the molar heat capacity of a solid sample from the observation that transferring the sample with n = 2.45 mol from boiling water (at constant ambient pressure) into 232.0 g of water initially at 25.1ºC raised the water temperature to 33...
Provide a structure for the following compound: UV spectrum: ?max = 272 nm (? = 39,500); EI mass spectrum: m/z = 129 (molecular ion and base peak); IR: 2200, 970 cm-1; 1H NMR: ? 5.85 (1H, d, J = 17 Hz); ? 7.35 (1H, d, J = 17 Hz); ? 7.4 (5H, appare..
determine why the 2s and 2p orbitals on hydrogen are degenerate and they are not in the case of lithium.the formation
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A buffer solution is .200 M in HNO2 and .185 M in NaNO2. What is the pH of the buffer system after 50 ml of .100 HCl is added to 250 ml of the buffer solution?? Ka of HNO2 = 4.6*10^4. (please show all work)
suppose you have 10 ml of 0.10m sucrose solution. you add 90 ml of water to the solution.Do the number of sucrose change? Does the molarity change?
a 0.4400-g sample of impure caoh2 is dissolved inenough water to make 43.90 ml of solution. 20.00 ml of theresulting
What fraction of iodine -131 remains 32 days after a 12.0 gram dose was administered? The half life of iodine -131 is 8.0 days
At body temperature 37 C, Ka for aspirin equals 3 x10^ - 5.If two aspirin tablets, each having a mass of 325 mg, are dissolved in a full stomach whose volume is 1 L and whose pH is 2, what percent of the aspirin is in the form of neutral molecules
Depict three structures of three sulfur containing acids. Decrease formal charges by expanding sulfur's octet. Include any non-bonded electrons on sulfur only.
A particular smoke detector contains 2.85 uCI of 241Am , with a half-life of 458 . The isotope is encased in a thin aluminum container. Calculate the mass of 241Am in grams in the detector. Fears of radiation exposure from normal use of such detec..
consider the following reaction occurring at 298k no2 n2o --gt3noif a reaction mixture contains only n2o and no2 at
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