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Suppose at some temperature, Kc= 6.20 X 10^8 for the reaction 2NO(g) + 2H2(g) <--> N2 (g) + 2H2O(g). 5.00 M NO(g) and 5.00 M H2 (g) are placed in a reaction flask. Calculate the equilibrium concentration of H2 (g)
the world's estimated annual gas reserves in 2006 were 6124 trillion ft3 .The world rate of annual use was 105.5 trillion feet3. How long these reserves will last if the rate of use continues?
A chemist wanted to determine the concentration of a solution of lactic acid, HC3H5O3. She found that the pH of the solution was 2.59. What was the concentration of the solution.
Its volume in the liquid state is 1.00 cm3 and its volume in the vapour state is 1671 cm3. Find the work done by expansion due to evaporation and the change of internal energy of the system.
when a compound a c5h12o is treated with hbr it forms compound b c5h11br. the 1h nmr spectrum of compound a has one
Identify the limiting and excess reactions and how many grams of the excess will be unused.
Determine the gram-formula mass of the product of this reaction. Include proper units.
What would you observe if Cu2+ and Bi3+ was treated with 6M NHO3 rather than concentrated NH3
What is the pH of a soft drink in which the major buffer ingredients are 6.6 g of NaH2 PO4 and 8.0 g of Na2HPO4 per 355 mL of solution
A buffer solution is prepared by mixing 20.0 mL of 0.032 M benzoic acid C6H5COOH(aq) solution with 25.0 mL of 0.022 M NaC6H5COO(aq). What is the pH of the buffer produced? (Ka of benzoic acid = 6.2x10^-5).
How do i calculate the volume of SO2 at standard conditions (25 degrees C and 1.00 atm pressure) produced from the heat treatment of 10.00 metric tons of NiS, assuming the reaction goes to completion with 100% conversion of S to SO2
Calculate mass of solid sodium benzoate (MW = 122.0 g/mole) required to mix with 100.0 mL of 1.0 M benzoic acid to prepare a pH 5 buffer. Ka of benzoic acid = 6.3E-5.
how much energy in kilojoules is needed to heat 4.00 of ice from -12.5 to 32.0? the heat of fusion of water is 6.01 and
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