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Comment on the unstable intermediate that is formed when catalysts and reactants combine
Hex-1-ene, 2-methylpent-2-ene, 2,3-dimethylbut-2-ene, (Z)-hex-2-ene, (E)-hex-2-ene Which one has the highest boiling point and why
The half-life of U-235, an alpha emitter, is 7.1*10^8 yr.Calculate the number of alpha particles emitted by 9.1 mg of this nuclide in 8.0 minutes.
assume a wind turbine with a hub 50 meters above the ground a rotornbspdiameter of 45 meters and a wind-conversion
How much heat is produced in burning 5 mol of CH^4 under standard conditions if reactants and products are brought to 298 K and H20(l) is formed
What is the molarity of an HCl solution if 23.3 mL of the solution is required to react with .266 g of Na2CO3
Predict whether the benzoin condensation would work with 4-tolualdehyde, 4- trifluoromethylbenzaldehyde, and 4-N ethylaminobenzaldehyde. Draw the structure of any products that are formed.
Calculate the amount of heat released in the complete combustion of 8.17 grams of Al to form Al2O3(s) at 25 degrees Celsius and 1 atm. ΔH0f for Al2O3(s) = 1676 kJ/mol.
An excess of the reagent 2,3-dimercapto-1-propanol was then added to displace the EDTA from zinc. Another 29.2 mL of Mg2+ were required for reaction with the liberated EDTA. Calculate the molarity of Ni2+ and Zn2+ in the original solution.
give an explanation for how calmagite works as an indicator for the titration of magnesium ion with edta. explain why
What is the ph change of a 0.300 M solution of citric acid (pKa=4.77) if citrate is added to a concentration of 0.130 M with no change in volume
A running automobile produces CO at a rate of 188g CO per hour. A car is left idling in a garage 5.2m long, 4.0m wide, and 2.2 m high at 20 degrees C. How long would it take to build up a lethal concentration of CO of 1000 ppmv?
The use of high salts, e.g. "salting out" is a common technique used during protein purification. Describe the chemical process underlying this method.
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