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Indicate whether energy is emitted or absorbed when the following electronic transitions occur in hydrogen from n=2 to n=6 and from an orbit of radius 4.76 A to one of radius 0.529A from the n=6 to the n=9 state
a mixture of hydrogen gas of 8.0 mol and oxygen gas of 4.0 mol is placed in a sealed evacuated container made of a
chloroform, CHCl3 has a ΔHvap = 29.4 kL/mol. what is it's vapor pressure at 25 degrees celsius
calculate the molarity of the solution. how many grams of kno3 are needed to make 450 ml of a solution that is to
What is the chemical formula for the base iron(III) hydroxide. The formula for the oxalate ion is C2O4^2-
Using the same assumptions and approximations you used in lab, determine the molar enthalpy change (in kJ/mol) for the reaction below, assuming that CH3CO2H dissociates completely in water.
formation of so3 from the air pollutant so2 is a key step in the formation of acid rain according to the following
boron has two stable isotopes with masses of 10.01294 u and 11.00931 u. the average molar mass of boron is 10.81 u.
the temperature of a 4.00L sample of gas is changed from 10.0c to 20.0c. what will the volume of this gas be at the new temperature if the pressure is held constant?
calculate the concentration of nonelectrolyte solute particlesin human blood if the osmotic pressure is 7.53 atm at37oc
Draw an energy-level diagram for the valence molecular orbitals of CO. Include the relevant atomic orbitals in your diagram. Clearly label each molecular orbitals and fill in the appropriate number of electrons
How much energy in ATP's is produced in one individual Kreb Cheat sheet cycle in the heart. ( Assuming all the product goes though the electron transport chain)
You conbine 16.0g of KO2 with the CO2 in 4.00L tank, in which the gas pressure is 1.24 atm at 23.0C. What is the pressure of the oxygen formed if captured in 2.50L flask at 25.0C
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