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Ionization energy is defined as the amount of energy input that is needed from an outside source to remove an electron from an atom. Ionization, in the quantum view, corresponds to raising an electron to the n = 1 electronic state.
What is the ionization energy of a hydrogen atom which is in the ground (n = 1) state?
It takes 51.0 J to raise the temperature of an 11.0 g piece of unknown metal from 13.0 degrees celcius to 24.0degrees celcius What is the specific heat for the metal? Express your answer numerically, in Joules/gram Degrees celcius
What is the osmotic pressure at 22 C of an aqueous solution that contains 4.35 g of urea (NH2CONH2) dissolved in 100 ml of solution
Write the equilibrium constant expression, Kc , for the following chemical reaction.
A voltaic cell employs the following redox reaction: 2Fe3+(aq)+3Mg(s)--> 2Fe(s)+3Mg2+(aq+ Calculate the cell potential at 25 under each of the following conditions.
An element has a mass of 207 and has 125 neutron in its nucleus. how many protons and electrons does it have and where are they located
Determine q for the acid-base reaction, assuming that the liquids have densities of 1.00 g/mL and the same heat capacities as pure water.
you have a 5.68 g sample of a compound with the formula xcl2 where x is a metal cation. when the sample is treated with
disubstituted alkene was formed in which the olefinic protons exhibited a vicinal coupling of 9.0Hz in the H NMR. What is the stereochemistry
what is the enthalpy change per g mol of O2 between the liquid storage tank and the state of which the O2 enters the fuel cell
An isotonic solution will produce an osmotic pressure of 7.84 atm measured against pure water at human body temperature (37.0 °C). How many grams of sodium chloride must be dissolved in a liter of water to produce an isotonic solution
In a solution of glucose and water, if 4.5% of the mass is glucose, how many grams of the solution contain 2.25 g glucose ?
What mass of CO2 is produced when 50.0 g of C2H4 reacts completely in the equation C2H4 + 3O2 = 2CO2 + 2H2O
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