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When one mole of hydrogen decomposes into H atom the change in enthalpy is 435. 88 kJ/mole. What is the formation enthalpy, ?Hf for hydrogen atom
If two liquids A and B that both boil at 100 ºC when pure form a non-ideal, positively deviating solution, what will be the boiling point for a 50:50 mixture of A and B?
what is the structure of a compound of molecular formula c10h14o2 that shows a strong IR absorbtion at 3150-2850cm^-1 and gives the following HNMR absorptions
If the titration required 23.95 mL of 0.2556 M HCl to reach the endpoint, calculate the equilibrium molar concentration of B4O5(OH)4 2- in the saturated solution.
Which of the following substances would consist of molecules with twice the average velocity of SO2 molecules at the same temperature?
A 25.0 mL bubble is realeased from a diver's air tank at a pressure of 4.00 atm and a temperature of 11 C. what is the volume of the bubble when it reaches the ocean surface where the pressure is 1.00 atm and the temperature is 18 C?
Why can't i reduce carboxylic acid using sodium borohydride while lithium aluminium hydride can do the same thing.
A line in the Paschen series of hydrogen has a wavelength of 1280nm. From what state electron originate ?
What is the change in chemical potential of any pure liquid when it vaporizes at its normal boiling point
What is a zymogen? Is it used over and over like other enzymes? And what is the physiological advantage
Question1. Describe the movement of gas particles. ; Question2. Compare the shape and volume of a solid and a gas.; Question3. Gases are easily compressed.
Iron (III) oxide may be reduced to pure iron either with carbon monoxide or with coke (pure carbon). Suppose that 150kg of ferric oxide are available
list all possible products of acetaldehyde (ethanal) was reacted with acetone in an aldol condensation
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