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1.The density of solid Fe is 7.87 g/cm3. How many atoms are present per cubic centimeter of Fe?
2.As a solid, Fe adopts a body-centered cubic unit cell. How many unit cells are present per cubic centimeter of Fe?
3.What is the volume of a unit cell of this metal?
4.What is the edge length of a unit cell of Fe?
0.1 Mol L-1 of HC2H3O2 and 0.05 mol L-1 of Hno2 are added to the same container of water at 298 K. compute the final pH of this solution.
How many air molecules are in a 10.0x20.0x10.0 ft room? Assume atmospheric pressure of 1.00atm , a room temperature of 20.0C , and ideal behavior.
What is the minimum uncertainty in the position of an electron, given that we know nothing about its speed except that it is less than the speed of light?
At equilibrium the rate of change of reactant concentration is zero. F) As a reaction proceeds backwards toward equilibrium the reactant concentrations rise.
If a bottle of nail polish remover contains 150g of acetone, how much heat would be released by its complete combustion?
Picric acid has been used in the leather industry and din etching copper. However, its laboratory use has been restricted bycause it dehydrates on standing and can become shock sensitive. It has an acid dissociation constant of .42. What is the [H..
Calculate the pH of a 1.00 L solution which is made up of 0.046 mol acetic acid and 0.026 mol sodium acetate.
Vitamin b6 is needed in the metabolism of amino acids. When it binds to an enzyme it forms a complex with the e-amino group of lysine, which is a primary amine.
Calculate the amount of heat required to completely sublime 18.0g of solid dry ice (CO2 ) at its sublimation temperature
A gas mixture contains helium and oxygen at respective partial pressures of 255 torr and 0.450 atm. What is the total pressure in mm Hg of the mixture?
The boiling point of a solution containing 10.44 g of an unknown nonelectrolyte in 50.00 g of acetic acid is 159.2°C. What is the molar mass of the solute?
In a chemical reaction (unbalanced equation), AsF3 + C2Cl6 -> AsCl3 + C2Cl2F4, the theoretical yield of C2Cl2F4 was calculated to be 1.86 mol. If the percent yield in the reaction was 77.2%,
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