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The anion I42- is linear. The anion I5- is bent, with a 95° angle at the central iodine atom. Draw valid lewis structures for each of these ions. What orbital hybridizations are consistent with the molecular geometries?
Poly (ethylene terephthalate), which is the commonly used polyester Dacron, can be formed by an acid-catalyzed esterification between ethylene glycol (HOCH,CH,OH) and terephthalic acid (HOOC-C6H4-COOH, para isomer). Show the polymerization reactio..
What is its solubility at a partial pressure in air of 0.00021 atm? Assume that CO2 obeys Henry's Law.
chemical reaction is run in which 263 Joules of heat are generated and the internal energy changes by -128 Joules.
A chemist burns a a saltine cracker in a calorimeter containing 2.0 kg of water. The water temperature increases from 25.0°C to 29.7°C. Calculate the heat content of the cracker in J per cracker.
write equations that show a plausible reaction mechanism for the light-catalyzed isomerization of methyl maleate
The amino acid L-histidine has three acid-base equilibria, with pKa values of 1.78, 5.97, and 8.97. Plot the fraction of solute species present in solution in the pH range 0 to 14.
Explain how does the rate differ in the presence of a catalyst. Do you believe that the catalyst would be more effective at higher concentration. Do you have any ideas as to how this catalyst might work, Define what are the charges on the reactant..
Why should reflux of the microscale reaction mixture be gentle, with the condensation ring remaining close to the surface of the liquid in the test tube.
When a sample of H2S gas produced according to the equation was collected over water at 25 oC the pressure of gas above the water was 0.997 atm and its volume was 6380 mL. Calculate the mass (g) of Fe2S3 that reacted. Be sure to consider the vapor..
If an enhancer is placed on one plasmid as well as its corresponding promoter is placed on a second plasmid that is catenated (linked) with the first initiation is almost as efficient as when the enhancers as well as promoter are on the same plasm..
Mg + 2HCl --> MgCl2 + H2 For a mass of 0.013 g Mg and 5.0 mL of 1.00 M HCl, calculate the partial pressure of the resulting H2(g) in a flask with V = 140.612 mL at 23.5?C.
a solution of ammonia and water contains 2.40times1025 water molecules and 5.50times1024 ammonia molecules. how many
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