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The following equilibrium constants are given at 427°C. Na2O(s) 2 Na(l) + 1/2 O2(g) K1 = 2. 10-25 NaO(g) Na(l) + 1/2 O2(g) K2 = 2. 10-5 Na2O2(s) 2 Na(l) + O2(g) K3 = 5. 10-29 NaO2(s) Na(l) + O2(g) K4 = 3. 10-14 Determine the values for the equilibrium constants for the following reactions. (Hint: When reaction equations are added, the equilibrium expressions are multiplied.) (a) Na2O(s) + 1/2 O2(g) Na2O2(s) (b) NaO(g) + Na2O(s) Na2O2(s) + Na(l) (c) 2 NaO(g) Na2O2(s)
The vapor pressure of chloroform (CHCl3, molar mass 119.5 g/mol) is 4.00 x 10^2 torr at 42.7 C. if 40.0 g of CHCl3 is enclosed in a 10.0 L container, how much liquid CHCl3, if any, will remain in the container
If the concentration of H2 in the equilibrium mixture is 0.426 M, what mass of methanol was initially introduced into the vessel?
Find the hydronium ion concentration,the hydroxide ion concentration and the pH of a 0.001 M solution of HCI,if alpha=1 2) Which of salts hydrolize in aqueous solution : CaCO3,Pb(NO3=2,Al2S3?
The standard reduction potential for the reduction of Eu3+(aq) to Eu2+(aq) is -0.43V. Which of the following substances is capable of reducing Eu3+(aq) to Eu2+(aq) under standard conditions
What are the approximate bond angles at the carbon atom of all alcohols except phenols
If 323 g of magnesium reacts with excess oxygen to produce 296 g of magnesium oxide, what is the percent yield for the reaction?
the atomic masses of 6Li and 7 Li are 6.0151 amu and 7.0160 amu. Calculate the neutral abundance of each isotope. The average atomic mass of Li is 6.941 amu
Calculate the pH at the points in the titration of 40.00 mL of 0.425 M NH3 for the reaction below. NH3(aq) + HNO3 ? NH4+(aq) + NO3?(aq) For NH3, Kb = 1.8x10-5. Enter your answer with 2 decimal places.
Concentrations of aerosol constituents are sometimes expressed as ppb (mole fraction) to enable comparison with gaseous concentrations expressed in ppb. The unit ppb (mole fraction) is evaluated as RT x concentration of aerosol constituent in nano..
What is the value of the frequency factor A for this reaction? What is the rate constant for the reaction at 350 degrees celcius?
Calculate the concentrations of all species in a 1.08 M Na2SO3 (sodium sulfite) solution. The ionization constants for sulfurous acid are Ka1 = 1.4× 10-2 and Ka2 = 6.3× 10-8.
a)calculate the atom economy and reaction efficiency of your synthesis of isopentyl acetate. b) tell how the procedure of isopentyl acetate might be modifed to increase the reaction efficiency . c)Describe some green features of your syntheisi, an..
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