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What is the formula for the formation of one mole of nitric acid from nitrogen, hydrogen and oxygen?
In a titration, 25.0 mL of 0.154 M HCl was added to 45.0 mL of 0.213 M ammonia (NH3). What is the pH at this point? (Kb of NH3 = 1.8 × 10-5 )
A 28.0-g sample of water at 250. K is mixed with 47.0 g water at 300. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
The equilibrium constant expression for the reaction 2BrF5(g) Br2(g) + 5F2(g) is A) Kc = [Br2] [F2] / [BrF5] D) Kc = [BrF5]2 / [Br2][F2]5 B) Kc = [Br2] [F2]5 / [BrF5]2 E) Kc = 2[BrF5]2 / ([Br2] × 5[F2]5) C) Kc = [Br2] [F2]2 / [BrF5]5
prepared by dissolving 0.798 g of acetic acid in 500 ml of water solution, what is the osmotic pressure, in mmHg at 25 degrees Celsius?
the route you would use to go from starting material product to the end.
Derive the activation energy for a reaction that proceeds 2 times faster when the temperature is raised from 20 C to 30 C.
A solution is 0.10 M AgNO3 and 0.10 M Ba(NO3)2. If solid Na2SO4 is added to the solution, what is [Ba2+] when Ag2SO4 begins to precipitate? (Ksp BaSO4 = 1.1 x 10-10; Ag2SO4 = 1.1 x 10-5)
the 1H NMR spectrum contains a triplet at 1.08 ppm (3H), a singlet at 2.5 ppm (3H), and a quartet at 2.45 ppm (2h). the magnitudes of the splitting of both the quartet and triplet are identical. deduce the structure of this compound and assign all..
Five metal rods (Copper, Iron, Nickel, Tin and Zinc), at room temperature, of equal mass are place in a 100 oC water bath. Which metal will reach 80 oC first.
A 10.60 mL sample of sulfuric acid from an automobile battery requires 34.32 mL of 2.01 M sodium hydroxide solution for complete neutralization. What is the molarity of the sulfuric acid? Sulfuric acid contains two acidic hydrogens.
Explain the steriochemisty of gyceraldehyde and glycerol, give reasons for absence of anomeric forms in sucrose
Write net Brønsted equations that show the acidic or basic nature of the following solutions in water. For polyprotic species (vitamin C, lemon juice, and washing soda), show only one proton transfer
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