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Silver has only two naturally occurring isotopes 107ag with a mass of 106.90509 amu and an abundance of 51.84% and 109 ag with a mass of 108.9047 amu. calculate the atomic mass of silver.
Calculate the solubility product, Ksp, magnesium oxalate (MgC2O4) using appropriate standard reduction potentials from Appendix H
Cobalt-60, which undergoes beta decay, has a half life of 5.26 years.
The heat capacity of the calorimeter was 24.5J/0C and contained exactly 1250g water which increased from 24.620C to 27.430C. Calculate (Delta)U for the reaction in kJ/mol rxn
Using a reasonable range of temperatures, determine the apparent (or global) activation energy of NO formation during a combustion process
If the mass of water surrounding the calorimeter was exactly 1000 g and the heat capacity of the bomb calorimeter was 1.75 kJ/°C, calculate the molar heat of combustion of liquid methanol .
How many minutes will it take to plate out 16.22 g of Al Metal from a solution of Al^+3 using a current of 12.9 amps in an electrolytic cell
What is the best and easy way to determine the frequency (in hz) of the interacting photon. A photon interacts with a ground state electron in a hydrogen atom and is absorbed.
There are many types of energy: electrical, kinetic, gravitational potential, chemical, elastic, heat, etc. Choose an object or system in which energy is transformed from one form to another. Describe the energy transformations in this object or s..
A 15.0-g sample of a hydrocarbon is placed in a balloon at 1.00 atm and 25°C, and the volume of the balloon is 12.2 L. The hydrocarbon is 79.89% carbon and 20.11% hydrogen by mass.
A mass of 2.50 g of hydrated copper(II) sulfate is placed in a crucible and heated. On heating, 1.59 g of white anhydrous copper(II) sulfate is left behind. Determine the ratio of water to copper(II) sulfate.
Assuming that the atoms are spheres in contact along the face diagonal, what is the radius of a Ar atom (in Angstroms)? An angstrom = 10-10 m or 10-8 cm.
Calculate the fraction of space that is occupied by packing spheres in the (a) simple cubic, (b) body-centered cubic, (c) face-centered cubic (close packed) structures
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