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The regular free energy of formation of ammonia is -16.5 Kj/mol. Explain what is the value of K for the reaction below at 575.0 K?N2(g) + 3 H2(g) --- 2 NH3(g)
Compute the pH of a water sample at 25oC that contains 0.62 mg/L of carbonic acid. Presume that [H+] = [HCO3-] at equilibrium and neglect dissociation of water.
The solubility of MX in a solution buffered to pH=2.00 is only 3.17 x 10^-8M. It turns out that HX is a weak acid. (Ka= 1.00 x 10^-15M)
The decomposition of hydrogen peroxide is first order in H2O2. 2H2O2 -----> 2H2O + O2 The rate constant for this reaction at 20 C is 1.8 * 10^-5 s^-1
At what temperature would CO2 molecules have an rms speed equal to that of H2 molecules at 25 degrees C?
Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.100 M HCLO with 0.100 M KOH. The ionization constant for HCIO is 4.0 x 10^-8 a) after addition of 50.0 ml of KOH
What is the equilibrium constant expression for the following reaction? 2BrF5-----> Br2 + 5F2
Gold miners then react the basic aqueous product solution from part C with Zn dust to get gold metal. Write a balanced redox reaction for this process.
question when a 2.00-g sample of kscn is dissolved in water in a calorimeter that has a total heat capacity of 1.717
Explain what volume of 0.1209M HCl is necessary to neutralize 0.5462 grams Ca(OH)2? Include a balanced chemical equation.
Determine the of a solution that is 1.85% by mass. Assume that the solution has density of 1.01
Draw the product obtained when trans-3-octene is treated first with Br2 in CH2Cl2, second with NaNH2 in NH3, and then finally with H2/Lindlar's catalyst.
The other flask is filled with Ar and has a volume of 1.85 L and a pressure of 115 torr. If the valve is open and the gasses mix and assuming that the temperature is constant, what is the final total pressure
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