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Consider the three flasks in the diagram below. Assume the temperature is held constant. When the stopcocks are closed, the three flasks have the following volume and pressure values: He 1.00 L at 200. torr, Ne 1.00 L at 410 torr, Ar 2.00 L at 250 torr. Assuming the connecting tubes have negligible volume, what is the partial pressure of each gas and the total pressure after all the stopcocks are opened?
Pour the water into a 24.0 gram beaker and boil off all the water, so only the salt remains. The beaker with salt in it weighs 41.0 grams. What is the % of salt and % of water
What volume of 0.100 M NaOH is needed to react with 11.00 g of potassium hydrogen phthalate, a monoprotic acid with a molecular weight of 132 g/mol?
A water desalination plant is set up near a salt marsh containing water that is 0.10 M NaCl. Calculate the minimum pressure that must be applied at 17°C to purify the water by reverse osmosis.
Analysis with an elaborate instrument indicates that substance A contains two elements. Substance B and substance C react to give a new substance D
What is the initial pH of this buffer? 2. What is the pH of the buffer in question
Some water was added to the initial reaction mixture in the procedure you performed. a. How might the yield of 1-bromobutane be affected if the water were not added, and what product(s) would be favored
How does iron particle size affect the removal of the dyes? In addition to the synthesized nanoparticles, you will have access to several different bulk iron particle samples (with diameters of 1 mm, 0.15 mm, 0.069 mm, and
when that precipitate was treated with NH3 it turned black. Based on this what can you say about the ions that may be present or absent in the solution? Can you reach a conclusion about the presence or absence of each of the three ions based on th..
which weighs approximately 8.6 oz. Aluminum has a density of 2.70g/cm^3. What is the approximate thickness of the foil in millimeters?
In the preparation of the esters given in this experiment, the reaction product was extracted with 5% sodium bicarbonate solution in the isolation step. Why? What gas was evolved during this washing step? Write a balanced equation for the reaction..
the pH of a 0.20 M solution of a weak monoprotic acid is 3.70. What is the value of the ionization constant
Calculate the masses of silver chloride and dihydrogen monosulfide formed when 85.6 g of silver sulfide reacts with excess hydrochloric acid, HCl?
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