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The energy needed to ionize an atom of Al when it is in its most stable state is 577.6 kJ mol-1. However, if an atom of Al is in a certain low-lying excited state, only 274.4kJ mol-1 is needed to ionize it. What is the wavelength of the radiation emitted when an atom of Al undergoes a transition from this excited state to the ground state?
A pitcher containing .9 L of water at 3 degrees celceus is removed from the fridge. How many kilojoules are needed to warm the water to a room temperature of 35 degrees celceus
0.0200 mole of HCl and 0/0200 mole of NaOH react in an open calorimeter and produce 100 J of heat what is the enthalpy of the reaction per mole of HCl
Consider 2 Al + 6 HCl → 2 AlCl3 + 3 H2 , the reaction of Al with HCl to produce hydrogen gas. This reaction has a yield of 82.5 percent. How much HCl are needed to produce 14.0 L of H2 at 351 K and 1.11 atm ?
32 mg of a FAD containing enzyme was found to contain 800 micrograms of FAD. This enzyme has a native molecular weight of 64 kD as well as is encoded by an 872 bp ORF. Explain what can be said regarding the protein architecture as well as cofactor..
tincture of iodine is i2s dissolved in ethanol c2h2oh. a 1 solution of tincture of iodine is 10.0g of solute for 1000g
Why do adjacent pairs of primers give a PCR product, but non-adjacent pairs of primers would not?- the pairs of short primers we using are both complementary to a single strand of DNA from the organism's genome.
Draw the structure of the organic compound that exists when lidocaine is in the presence of an acidic solution, for example, hydrochloric acid. You may use standard implicit style for atoms and lone-pairs if you like
What is the equilibrium concentration of fluorine if the initial concentrations of bromine and fluorine were 0.113 moles/liter in a sealed container and no product was present initially
State Lewis dot formulas for each of the following and understand whether they are linear, trigonal, pyramidal, bent or tetrahedral and if the molecule is polar.
0.554g sample that is a mixture of oxalic acid, H2C2O4 and another solid that does not react with sodium hydroxide. If 29.58 mL of 0.550 M NaOH is required to titrate the oxalic acid in the 0.554g sample to the equivalence point
How can you ensure that an employer will realize that you have a clear grasp of who you are and what you have to offer?
If you dissolved 0.95g of salt in 100ml distilled water, what is the concentration of salt in this solution in g/ml
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