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In which one of the following aqueous solutions would you expect silver (I) bromide to have the lowest solubility? and why?
A 0.10M silver (I) nitrateB. 0.10 M lithium bromideC. Pure waterD. 0.20 M sodium bromideE 0.15 M Potassium bromide
What is the synthesis for the following compunds from simple organic precursors? Important Using original syntheses, not from published works.
A skyscraper in Pittsburg, built in the early 1970's, is supported by water filled columns. Potassium carbonate was added to the water to precent freezing during cold weather. If the solution is 40.0% K2CO3 by mass, what is the predicted freezing ..
N2 is used industerial to produced Nitric acid, but contributes to acid rain and photo chemical smog. What value of nitrogen is formed at 742 torr and 28.7dgree by reacting 2.78cm^3 of cuppor 8.95gm/cm^3 .with 246 ml of nitric acid and 68% by mass
When a sucba diver goes to a dive shop to have her scuba tanks filled with air, the tank is connected to a compressor and filled to about 2100 psia while immersed in a tank of water (so that the compression of air into the tank will be approximate..
There are 100 grams of water in the bucket, how much heat did the 100 grams of tungsten conduct to the water what was the initial temperature of the hot tungsten? Ctungsten = .04 cal/g×°C
Alpha helices are a type of secondary structure in proteins. What is the length of a 23-kDa single-stranded ?-helical protein segment
How much heat does your body lose when 3.35g of sweat evaporates from your skin at 25 degrees celsius? (Assume that the sweat is only water.) The heat of vaporization of water at 25 degrees celsius is 44.0 kJ/mol.
How many grams of Mg2SO4 is required to make up 100mL of 20g/L Mg2SO4 solution in water?
A solution of selenium-75, a radioisotope used in the diagnosis of pancreatic disease, is found just prior to administration to have an activity of 44 uCi/mL. How many milliliters should be administered intravenously for a dose of 175 uCi
Chemicals available for crystallization: ethyl ether, 95% ethanol, methanol, isopropyl alcohol, aceton, hexane, toluene and methylene chloride.
A 2.56 g sample of a colorless liquid was vaporized in a 250mL flask at 121*C and 786 mmHg. Determine the molecular weight of the liquid
Determine the freezing point and calculate the final temperature if initially this iron nail was at temperature of 28 degree Celsius?
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