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On or after the Bohr model of the hydrogen atom we can conclude that the energy necessary to excite an electron from n = 2 to n = 3 is the energy to excite an electron from n = 3 to n = 4.
a. Lessthan
b. Greater than
c. Equal to
d. Either equal to or less than
e. Either equal to or greater than
Determine the numbers of oxygen molecules are required for each molecule of C 6 H 12 O 6 glucose that is oxidized if Glucose is oxidized by molecular O 2 to CO 2 and H 2 O?
A 0.0355 g sample of an unknown molecular compound is dissolved in 1.000 g of liquid camphor at 200.0°C. Upon cooling, the camphor freezes at 157.7°C. Calculate the molar mass of the unknown compound.
Calculate the wavelength of light emitted from a hydrogen atom when it undergoes a transition from the n=6 level to n=3.
isotope 1 has a mass of 120.9038 rm amu and a relative abundance of 57.4 and isotope 2 has a mass of 122.9041 rm amu.
question when one mole of solid naoh is dissolved in 1l of solution 44.5kj of heat are released. how much heat is
If 15 grams of copper(2) chloride react with 20grams of sodium nitrate, how much sodium chloride can be formed
a and b liquids on mixing produced a warm solution.which type deviation is there and why is that type of
A gas is expanded in a cylinder from 2.00 L to 12.0 L against an external pressure of 1.80 atm. At the same time, it absorbs 2.56 x 103 J of heat from the surroundings. Calculate ?E of the gas in J. (1 L•atm = 101.3J)
2HCrO4 ^- Cr2O7 ^2- + H2O Determine concentrations of Dichromate ion and Bichromate ion if we add .1mol/L of bichromate ion and no dichromate ion once reaction reaches equilibrium.
At 25 C the reaction from Part A has a composition as shown in the table below. What is the free energy change,delta G , in kilojoules for the reaction under these conditions. C2H2(g) 4.15 H2(g) 4.45 C2H6(g) 2.25×10-2 ?G = ??? kj
Please explain which of the following aqueous solutions has the strongest ion-dipole attractions: 0.3 M Na3PO4 .1 M NiF2 .2 M Rb2CO3 0.01 M Sr(OH)2 and .03 M ScBr3.
The pH of a 0.02M solution of a weak acid was measured to be 4.6. What is the [H+] in the solution? Calculate the Ka and pKa for this acid.
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