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Compute the lattice energy of Na2O deltaH(f) (Na2O) = -409 kJ/mol deltaH(f) (O,g) = +249 kJ/mol. Utilizing the Born-Haber Cycle to get this- Lattice energy of Na2O = 2564 kJ/mol.
lf the catalyzed decomposition of NrO occurs first at a Tr:341 K and then atTr = 229 K, with a k/k, ratio of 0.500, what is the activation energy
Calculate the weight of water required to steam distill 500 mg of bromobenzene at 95 degree Celsius. The vapor pressure of water at this temperature is 640 torr; that of bromobenzene is 120 torr
describe the preparation of 400 mL of a solution that is 0.0500 M in I-, starting with MgI2.
Determine how many grams of copper sulphate are there in 219 grams of an aqeous solution that is 20.2% by weight of copper sulphate?
Calculate the % yield of Al2(SO4) from the reaction: 2Al(OH)3(s) + 3H2SO4(aq) -> Al2(SO4)3(s) + 6H2O(l) given that 205 g of Al(OH)3 react with 751 g of H2SO4 to yield 252 g Al2(SO4)3.
Calculate mass of chromium III hyrodixide, c- Calculate the molar concentration of ions remaining in solution after reaction has taken place (total cocentrations of Cr3+, OH, K, NO3-)
what is used to measure volumes of liquid accurately? what is used to hold a stem funnel in filtration or a crucible and cover?
Write both an equations using Lewis Structures and a balanced chemical equations for the following reactions: Silicon atoms and Chlorine molecules Lithium atoms and Bromine molecules Ethylene molecules
How many silver atoms can be produced if 0.00350g of Cu are reacted with excess AgNO3, according to the equation :Cu + 2AgNO3 yields 2Ag + Cu(NO3)2
The density of ocean water at a depth of 10,000 m is 1.071 g/mol and if 27 g of water at that depth contains 185 mg of potassium chloride, what is the molarity of potassium chloride in the sample
determine a value of kc for the equilibrium which is established when ethanol reacts with ethanoic acid.ch3cooh
Draw the condensation reaction that would form the dipeptide Met-Ile from the amino acids, Methionine and Isoleucine. Based on the characteristics of the side chains ONLY, would you expect the dipeptide to be polar or nonpolar
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