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Given the following equilibrium constants at 427 °C: Na2O(s) <=> 2Na(l) + 1/2 O2(g) Kc = 2 x 10-25 NaO(g) <=> Na(l) + 1/2 O2(g) Kc = 2 x 10-5 Na2O2(s) <=> 2Na(l) + O2(g) Kc = 5 x 10-29 NaO2(s) <=> Na(l) + O2(g) Kc = 3 x 10-14 Determine the value for the equilibrium constant for 2NaO(g) <=> Na2O2(s)
A mixture of KBr and NaBr weighing 0.560 gm was treated with aqueous Ag+ and all the bromide ion was recovered as 0.970 gm of pure AgBr. What was the fraction by weight of Kbr in the original sample?
Ozone reacts with nitric oxide discharged from jet planes to form oxygen gas and nitrogen dioxide. 0.740g of ozone react with 0.670g of nitric oxide. Determine the identity and quantity of the reactant supplied in excess.
celcius have enough energy to overcome the activation energy barrier for a particular reaction, what is the activation energy for this reaction
In the formation of an acetal one mole of aldehyde requires which of the following? a. one mole of alchol b. two moles of alcohol c. one mole of alcohol and one mole of water d. two moles of water
Alkynes can be hydrated in the presence of acid and HgSO4, by electrophilic addition of a molecule of water to the triple bond.
A flask that can withstand an internal pressure of 2491 torr, but no more, is filled with a gas at 21.0°C and 758 torr and heated. At what temperature will it burst?
what is the change of enthalpy in condensing 15.0 g of water at 100 degrees C at constant pressure.
A reaction has an activation energy of 110 kJ/mol and a rate constant, k=1.2 x 10^-12 s-1 at 0?C. At what temperature will the rate constant k=5.1 x 10^-7 s-1.
At a birthday pool party, the temperature is 29.5C and the atmospheric pressure is 765.4mmHg. One of the decoration hellium balloons has a volume of 6.25L. what would be the volume of the balloon if it were submerged in a swimming pool to a depth ..
What is the concentration of an ammonium chloride solution prepared by using 0.5L of water to dissolve the product of the reaction of 1.25 L of ammonia gas at 22 degrees C
Climbers sometimes develop Acute Mountain Sickness (AMS) when ascending too rapidly without allowing their bodies time to acclimate to the lower oxygen concentrations in air at high elevations.
A gas occupies 12.3 liters at a pressure of 40.0 mmHg. What is the volume when the pressure in increased to 60.0 mmHg
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