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A highly excited atom of hydrogen makes a transition from the n = 9 to the n = 8 state and emits a photon. What is the energy of this photon in joules? What is the wavelength in meters of the photon emitted when this highly excited hydrogen atom of hydrogen makes its transition from the n = 9 to the n = 8 state?
determine the amount of heat (in kJ) given off when 1.42 * 10^4 g of NO2 is produced according to the following equation : 2 No(g) + o2(g) --> 2NO2(g) H = -114.6kj
What are those byproducts? to remove the byproducts from the organic phase
Draw the major E2 reaction product formed when (1R,2S,4S)-2-chloro-4-methyl-1- (propan-2-yl)cyclohexane (shown below) reacts with hydroxide ion in DMSO.
Solving this question helps the student to understand how to find molecular formula using moles and mass and What is the molecular formula of this compound?
What is the balanced equation of sodium borohydride and 4-tert-butylcyclohexanone? The reduction reaction has the product 4-tert-butylcyclohexanol which is a mixture of cis and trans isomers.
By what percentage does a dilute aqueous solution expand when heated form 15 degrees C to 25 degrees C? If a 0.5000 M solution is prepared at 15 degrees C,
aniline, an organic amine, C6H5NH2, a weak base with Kb of 4.0x10^-10, reacts with water to form its conjugate acid, C6H5NH3^+. write the equation and the base dissociation constant for aniline.
The reverse reaction is first order in B and the rate constant is 8.50 X 10^-1 What is the value of the equilibrium constant for the reaction A (equilibrium) B at this temperature
D-xylose residues are present in the greatest amount and are attached by ß (1->4) glycosidic bonds. Draw the structure of a disaccharide consisting of D-xylose
Write and balance the given chemical equation and Write a balanced equation for this reaction
For an elderly patient with impaired renal function, the dose is reduced to 250 mg every 6 hours. Calculate the reduction in the daily dose, in milligrams.
If a 200 piece of gold (density =19.32 ) is hammered into a sheet measuring 2.5 by 1.0 ft , what is the average thickness of the sheet in meters?
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