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One-dimensional infinite potential well has A particle in the state n=1 . determine the probability of particle would be located in the range 0.5a less than or =, x less than or = 0.75a (width of the well=a) wave function Ψn=(2/a)^1/2 sin(n 180 x/a
Silver element has 2 naturally occurring isotopic form as 109Ag and 107Ag,with average atomic mass = 107.868 amu. Compute the atomic mass of 109Ag if natural abundance of 107Ag is 51.87% & atomic mass =106.905 amu.
calculate the amount of energy as heat by the freezing of 13.3 g of a liquid substance. given that the substance has a molar mass of 82.9g/mol and a molar enthalpy of fusion of 4.60 kj/mol.
diethyl ether is a volatile organic compound. the vapor pressure of diethyl ether is 401 mm hg at 18 degrees celsius
KCL,KCLO3, and MnO2 having a total wight of 23.584 was jeated tp decompose the KCLO3. After heating, the mass was found to be 22.347g. how many moles of oxygen gas was evolved.
Ethanol is a common laboratory solvent and has a density of 0.789 g/mL
What is the molar mass of adrenaline in a solution of 0.64 g of adrenaline in 36.0 g of CCl4 elevates the boiling point by 0.49?
what is the final temperature of the mixture? Use 1.00g/mL as the density of water.
Biphenyl is an organic compound that melts at 68.50?C and has a Kfp = 8.00?C/m. If 30.0 mg of lysine and 1.200g of biphenyl has an observed freezing point of 66.13?C, what is the molecular mass of lysine
Calculate the entropy change that occurs when 3.5 moles of an ideal gas expands from 1.75 L at 20 degress Celsius to 8.46 L at .54 atm.
An electron is confined to a one dimensional box of length L. It falls from the second energy level to the ground state, and releasee a photon with a wavelength of 322 nm
Calculate the change in free energy (Delta G) for the combustion of 1 mol of ethane C2H6 in oxygen gas. The products are carbon dioxide and water.
Aluminum reacts with chlorine gas to form aluminum chloride via the following reaction: \rm 2Al}+3Cl_2rightarrow2AlCl_3 What is the maximum mass of aluminum chloride that can be formed when reacting 26.0g of aluminum
For the reaction 2HCl+Na2CO3 →2NaCl+H2O+CO2 what volume of 0.45 M HCl solution would be needed to produce 2.5 L of CO2 at STP?
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