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Phosphorus pentachloride decomposes to phosphorus trichloride at high temperatures according to the reaction:
PCl5(g) ? PCl3(g) + Cl2(g)
At 250°C, 0.250 M PCl5 is added to a flask. If Kc = 1.80, what is the equilibrium concentration of Cl2 gas?
A)0.0280 M
B)1.80 M
C)0.222 M
D)2.02 m
If I add 1.65 L of water to 112 grams of sodium acetate...What is the molality of NaC2H3O2 in this solution?
If lead, which makes up 86.6% of galena and a particular ore contains 68.5% galena, what ,mass of ore is required to make a lead sphere with a 4.00 cm radius?
A certain reaction has an activation energy of 46.80 kJ/mol. At what Kelvin temperature will the reaction proceed 3.50 times faster than it did at 341 K
What product(s) are expected in the ethoxide-promoted β-elimination reaction of 2-bromo-2,3-dimethylbutane? Omit ions, salts
Hydration of alkynes (via oxymercuration) gives good yields of single compounds only with symmetrical or terminal alkynes. Draw the major organic product(s) formed when hex-2-yne undergoes hydration in the presence of HgSO4 and H2SO4.
A second worker approaches to within 5 meters behind a shield that attenuates 60% and remains there for 20.0 minutes. What is the ration between the absorbed doses for the two workers
A solution prepared from 1.10 g of oil of wintergreen (methyl salicylate) in 95.0 g of benzene has a boiling point of 80.505 °C. Determine the molar mass of methyl salicylate. The normal boiling point of benzene is 80.31 °C, and its boiling point ..
Suppose a nearby storm passage causes the wind speed in the town to suddenly increase to 10.0m/s. What is the carbon monoxide concentration one hour later?
tris is a compound that is commonly used in laboratories to buffer ph. you have a stock solution of tris that is at a
Calculate the formula weight of CuSO4 . Use the following atomic weights: Cu is 63.5463 g/mol, S is 32.0666 g/mol, and O is 15.99943 g/mol. Your reported answer should have the correct number of significant figures and units.
A mixture of Ar and N2 gases has a density of 1.416 at STP. What is the mole fraction of each gas?
Barium hydroxide, often used to titrate weak organic acids, is obtained as the octahydrate, Ba(OH)2. 8H2O. What mass of Ba(OH)2.
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