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0.375g of a monoprotic acid (mm=245g/mol) is dissolved in water to produce 25.0 mL of a solution with pH = 3.28. Determine the equilibrium constant of the acid.
Question- X=H and Y=4-ETO What is the product of this chalcone? What is the product of epoxide and isoxazole of this chalcone
The barometric pressure in a cavern was measured using a mercury barometer. A value of 74.2 cm of Hg was obtained. How many atmospheres is this
Calculate how many milliliters of carbon dioxide would be produced theoretically from 20g of sucrose at 25 degrees Celsius and 1 atomosphere pressure.
If N2 initial pressure=1.5atm and H2 initial pressure = 2.5 atm are permitted to react at300K and the total pressure at equilibrium is 2.0atm, define what is Kp.
Estimate the free energy change (?Grxn) for the following reaction at 298 K, if each gaseous substance is present at p = 0.30 atm. 2H2(g) + O2(g) ? 2H2O(l)
A particular brand of gasoline has a density of 0.737 at 25 . How many grams of this gasoline would fill a 13.6 tank
What concentrations of acetic acid (pKa = 4.76) and acetate would be required to prepare a 0.20 M buffer solution at pH 4.5? Enter your answer to two significant figures.
Use the Ksp values to calculate the molar solubility of each of the following compounds in pure water.
How would the % yield of aspirin be changed if the final rinse of the solid product on the filter paper was done with warm water instead of ice cold water
How much heat must be applied to a 18.3 g sample of iron (s=0.449J/(g x *C) in order to raise its temperature from 23.8*C to 356.6*C
what happens if cellulose is reacted with maleic anhydride C4H2O3? Again, how is the cellulose molecule/structure altered and what are the reaction by-products?
Using Henry's Law to calculate gas solubility If air contains 78% N2 by volume, what is the solubility of N2 in water of 25oC and 1 atm (Henry's constant kH for N2 in H2O at 25oC = 7 x 10-4 mol/L.atm)?
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