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For the elementary process N2O5 (g) = NO2(g) + NO3 (g) the activation energy (Ea) and overall Delta E are 154 KJ/mol, and 136 KJ/mol, respectively. What is the activation energy of the reverse reaction.
When aqueous solutions of lead( II) ion are treated with potassium chromate solution, a bright yellow precipitate of lead( II) chromate, PbCrO4, forms
Will the parietal pressure of SO3 increase, decrease, or remain the same? Be sure to support your answer with CLEAR calculation.
At 900 titanium tetrachloride vapor reacts with molten magnesium metal to form solid titanium metal and molten magnesium chloride. Write a balanced equation.
Using the thermodynamic data below, and a value of -717 kJ/mol for the Ulattice enthalpy for KCl, calculate the ionization energy of K. Hint: Remember to plug in numbers to the equation given in course content.
What is the minimum amount of 5.2 M H2SO4 necessary to produce 23.0 g of H2? according to the following reaction. 2Al(s)+3H2SO4(aq)-->Al2(SO4)3 (aq)+3H2(g)
The solubility of silver sulfate, Ag2SO4, in water has been determined to be 8.0 g/L. What is the solubility in 0.24 M sodium sulfate, Na2SO4
Draw the structure of the product that is formed when but-1-yne is treated with the following reagents:1) disiamylborane; 2) H2O2, KOH; 3) LiAlH4. Disiamylborane = [(i-Pr)(CH3)CH]2BH, a hindered derivative of BH3.
Consider all the valence electron pairs of the central atom-both those that are shared in covalent bonds, called bonding pairs, and those that are unshared, called non-bonding pairs or unshared pairs.
What amount of energy is required to completely ionize 6.2 grams of carbon atoms in the gas phase (C(g)) if the ionization energy of C(g) is 1086 kJ/mole?
What is the pH change of a 0.200M solution of citric acid (pKa=4.77) if citrate is added to a concentration of 0.175M with no change in volume?
Explain why the Rf values changed when the eluant was changed from 100% petroleum ether to a 95:5 mixture of petroleum ether-ethyl acetate. Why UV light is not a useful visualization technique in every circumstances?
Imagine a small electron-sensitive probe of volume 1.00pm^3 insterted into an H2+ molecule ion in its ground state. Calculate the probability that it will register the presence of an electron at the following positions
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