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What is the heat kcal released when 50.0 g of water at 100 degrees C hits the skin and cools to a body temperature of 37 degrees C?
Which of the following would be expected to have the lowest pH?
The sodium isotope,^21,11 Na,with a half-life of 23s, undergoes decay by emitting a positron. write the complete nuclear reaction.
Describe the fictional portrayals of the courtroom, including the trial process, the roles of the prosecution and defense, the roles of the courtroom participants (expand your response from the Week Five CheckPoint), and the handling or implementa..
If the solution has a specific heat capacity of 3.95 J/(g K) and a density of 1.015 g/ml, what is the DeltaH for the following reaction in kJ?
Calculate the pH of a buffer solution obtained by dissolving 22.0 g of KH2PO4(s) and 36.0 g of Na2HPO4(s) in water and then diluting to 1.00 L.
what steps are needed to prepare phenylacetylene from C6H5CH2CH2Br I chose the following reagents 1. H2SO4, 2. Br2, 3. NaNH2/excess (were correct) and simply require to draw the intermediate
At 25 °C and 765 Torr, carbon dioxide has a solubility of 0.0342 M in water. What is its solubility at 25 °C and 1470 Torr
The beta blocker drug, thimolol, is expected to reduce the need for heart bypass surgery. Its composition by mass is 49.4%C, 7.64%H, 17.7%N, 15.2%O, amd 10.1% S. Determine its empirical formula
Based on the principle of "like dissolves like", indicate the compounds listed below that are likely to be soluble in an organic solvent like methylene chloride or diethyl ether and those that are soluble in water.
Is Chloride ion or water a stronger ligand? explain. is water or ammonia a stronger ligand? explain
Acetaldehyde is produced by the dehydrogenation of ethanol according to the following reaction: C2H5OH CH3CHO + H2 An undesired side reaction occurs, which produces ethyl acetate: 2C2H5OH CH3COOC2H5 + 2H2 In a pilot plant, the conversion of ethano..
A patient's blood test shows that she has elevated levels of LDL (low density lipoproteins) at 4.12 mmol/L. Convert this concentration to units of molarity (mol/L)
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