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Calculate the equilibrium concentrations if the initial concentrations are 2.30 M N2 and 0.51 M O2 . (This N2/O2 concentration ratio is the ratio found in air.)
N2 (g) + O2 (g) = 2NO (g)
Kc= 1.7 X 10^-3
In conducting a titration of 75.00mL of a certain triprotic acid with 0.0800 M NaOH the following information was recorded. a. the first equivalence point was observed at pH 3.96 after the addition of 12.4 mL of NaOH
Fusion of boric acid with sodium oxide forms a borate salt, Na2BO7. Without writing complete equations, find the mass (in grams) of B5H9 required to form 156g of the borate salt by this reaction sequence.
Calculate the amount of N2 gas released (in liters at 37oC and 1 atm) when the diver returns to the surface of the water, where the partial pressure of N2 is 0.80 atm.
1.would you xpect the alpha-protons of a thioester to have a lower or higher pka than an ester? why? remember the pka
Determine the freezing point of a solution which contains 0.31 mol of sucrose in 175 g of water. Kf = 1.86°C/m
A 782 mL gas sample at STP is compressed to a volume of 131 mL, and the temperature is increased to 22?C. What is the new pressure of the gas in Pa?Answer in units of Pa.
A gas measures 180.0 mL at 87.0°C and 800.0 mm. Find its volume at standard temperature and 800.0 mm of pressure.
What is a chemically reasonable reaction that is stereospecific but not stereoselective
If 5.68 g of Cu was added to 3.18 g of S8, How much copper (I) sulfide would be produced?
What mimimum hydronium ion concentration (M) would be needed to prevent precipitation of cupric hydroxide (Cu(OH)2 Cu2+ + 2OH- , Ksp = 2.2 x 10-20) from a solution containing 0.010 M Cu2+ ion?
Under what circumstance is the rate law related directly to the balanced equation for a reaction
Proteins can be unfolded, or denatured, by agents that alter the balance of weak noncovalent forces that maintain the native conformation. How would the following agents cause a protein to denature
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