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A 0.375 gram sample of impure BaCl2?2H2O is titrated with 0.100M AgNO3, requiring 28.44 mL. Calculate (a) the percent BaCl2?2H2O in the sample and (b) the percent Cl- in the sample.
How many milliliters of 1.40 M H2SO4 are required to react with 5.00 g of solid containing 50.0 wt% Ba(NO3)2 if the reaction is as shown. Ba2+ + SO 4-2 BaSO4(s)
what is the molarity of all solutes in this solution. what is the osmotic pressure of the solution at 25 C. assume total dissociation of NaCL.
Calculate the lattice energy of NaCl. Heat of sublimation is 108kj/mol and Heat of NaCl is -411kj/mol. Energy to dissociate .5 mole of Cl2to an atom of Cl is121.4 kj/mol.
Explain what is meant by the discontinuous emission spectra of atoms (seen in flame tests or gas discharge tubes) and how the Bohr (Planetary) and Schrodinger (Quantum-Mechanical) model for electron structure explains these discontinuous spectra
The normal boiling point of methanol (CH3OH) is 64.7oC, and its molar enthalpy of vaporization is Hvap = 71.8 kJ/mol.
A basketball is inflated to a pressure of 1.50 atm in a 20.0°C garage. What is the pressure of the basketball outside where the temperature is -5.00°C?
Using molecular orbital analysis, predict which species of the following pairs would have the stronger bonding between the two atoms
For the cell reaction Cu(s) + 2Fe3+ ----> 2Fe2+ + Cu2+ Ecell=0.33V What is the value of the equilibrium constant at 25C for the cell reaction
If an automobile is able to travel 242 mi on 12.0 gal of gasoline, what is the gas mileage in km/L
Use the Heisenberg uncertainty principle to calculate the uncertainty (in meters) in the position of a honeybee weighing 0.67 and traveling at a velocity of 0.80 . Assume that the uncertainty in the velocity is 0.1. Express your answer using one s..
As the electron in a hydrogen atom jumps from the = 3 orbit to the = 7 orbit, does it absorb energy or emit energy?
When a sample of molten MgCl2 and a sample of aqueous MgCl2 are electrolyzed with inert electrodes different products are obtained. Determine the product of the electrolysis of each sample and explain why there is a difference.
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