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The coinage metals-copper, silver, and gold-crystallize in a face center cubic structure. Use the density of copper of 8.95 g/cm^3 to calculate the atomic radius of copper.
at 25.0degc a sample of xe gas occupies 531 ml in a piston-cylider apparatus when the external pressure is 337 torr. at
A 65 kg man is on ice skates. The skates' blades have a total contact area of 2.0 cm^2. How much pressure does the man exert on the ice
determine the molarity of a solution prepared by dissolving 45.0g of CH3OH in sufficient water to make 725mL.
being used as a membrane to purify nitrogen. if the flux of nitrogen through the member is 8.2*10^-7 kg/m^2-s, what is the production rate of nitrogen in g/h?
what is the acid dissociation constant of a weak acid if a concentration of 0.3 M gives a hydrogen ion concentration of 0.001M?
Brass has a specific heat capacity of 0.393 Joules/g C. A paperweight weighing 129g is heated to 95.0 C. Then it is added to 44.6g of water in a calorimeter having a temperature
A coffee-cup calorimeter contains 140.0 g of water at 25.2 *C. A 122.0 g block of copper metal is heated to 100.4 *C by putting it in a beaker of boiling water.
How many grams of magnesium metal must be burned to release 500 kcal of heat according to the following reaction: 2 Mg (s) + O2 (g) ® 2 MgO (s) DH° = - 288 kcal
When 50.0mL of a 1.00M solution of Fe(NO3)3 is mixed with 50.0mL of a 1.00M solution of NaOH a precipitate forms. Determine the mass of the solid produced in this reaction
Ions B and C react to form complex BC. If 20.0mL of 1.25M B is combined with 20.0mL of 1.25M C, 0.00650 mol of complex BC is formed. Determine the equilibrium constant for this reaction.
multiple choice questions in nuclear chemistry.1. magnesium-28 decays via beta emission which equation represents the
The solubility of Ag2CrO4 (331.74 g/mol) is 0.0435 g/L at 25C. What is Ksp for silver chromate?
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