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An electron would not be able to transition from a higher energy shell to a lower energy shell when: A- the shape of the shell is non-spherical B- the atom is a heavy isotope C- the shell contains 2n2 electrons D- the shell has two sets of paired electrons
Explain what is the relationship between standard free energy, the value of the equilibrium constant, K and the product or reactant favorability at equilibrium.
The hydrolysis of glucose-1-phosphate to glucose and Pi has a standard free energy of -5 Kcal/mol. What's the equilibrium constant for the reaction
A sample of neon gas used in a neon sign occupies a volume of 1.50 L at a pressure of 630 torr. Calculate the volume of the gas if the pressure in the glass tube of the sign is 793 torr.
what mass of ethanol ch3ch2oh should be dissolved in 450. g of water to obtain a freezing point of
why was Mendeleev's decision to leave blank spaces on his table sometimes was referred to as his most significant contribution to the periodic table?
Draw a tertiary carbocation, a secondary carbocation, and a primary carbocation, each with the formula C6H13.
A 149-mL bubble of hot gases at 217°C and 1.70atm escapes from an active volcano What is the temperature, in °C, of the gas in the bubble outside the volcano if the new volume of the bubble is 169mL and the pressure is 0.793atm ?
what is the wavelength emitted due to an electron moving from an infinitely far orbit (n=infinity) to n=2? in what region of the electromagnetic spectrum is this wavelength
Water is placed into a calorimeter. when 1 gram of an ionic solid is added, the temperature of the solution increases from 21.5 C to 24.2 C as the solid dissolves.
Consider the reaction when aqueous solutions of sodium acetate and potassium sulfide are combined.
a 3.23 gram sample of a sodium bicarbonate mixture was reacted with excess acid. 48.52 ml of the evolved gas was
To prepare 1.40 L of a buffer solution having an ionic strength of 0.130 and a pH of 7.00 would require:
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