<span>energy provided=13.4 eV
energy released=0.7 eV
energy absorbed = 12.7eV
initial energy= -13.6eV [ground state]
final energy = -13.6+12.7 = -0.9 eV
This energy corresponds to n=4 in hydrogen atom</span>
Water among the coast can be several degrees colder in different areas because the water is replenished and being pushed off the coast so these cooler and nutrient-rich waters rise from a depth of 50-300 meters to the surface of the ocean
Answer is: <span>a. two 511 kEv photons are formed.
</span><span>When the positrons reach thermal energies, they start to interact with electrons by annihilation.</span>
Positron-emission tomography<span> (</span>PET)<span> is a </span>nuclear medicine functional imaging<span> technique that is used to observe metabolic processes in the body. The system detects pairs of </span>gamma rays<span> emitted indirectly by a </span>positron<span>-emitting </span>radionuclide.
<u>Answer:</u> The equilibrium concentration of chloride ions in the solution is 4.532 M
<u>Explanation:</u>
We are given:
Initial molarity of = 0.054 M
Initial molarity of HCl = 4.60 M
Equilibrium molarity of = 0.034 M
The chemical equation for the reaction of and HCl follows:
Or,
<u>Initial:</u> 0.054 4.60
<u>At eqllm:</u> 0.054-x 4.60-2x x 6x
Evaluating the value of 'x':
So, equilibrium concentration of = (4.60 - 2x) = [4.60 - 2(0.034)] = 4.532 M
Hence, the equilibrium concentration of chloride ions in the solution is 4.532 M