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Copper has a density of 8.94 g/cm3 and an atomic weight of 63.55 g/mole. If each copper atom in a piece of solid copper contributes exactly one electron to the conduction bands, what is the conduction electron density of copper/ Answer should be stated as number of conduction electrons per cubic meter.
What is the initial sulfur dioxide concentration (in mol/L or M)?
hydrogen is collected over water, two gases are present hydrogen and water vapor.calculate partial pressure of hydrogen gas. Barometric pressure = 773.94 mmhg.
24.6g of a hydrated salt of MgSO4.XH20, gives 12.0g of anhydrous MgSO4 on heating. What is the value of x?
If a 190 piece of gold (density =19.32 ) is hammered into a sheet measuring 2.4x1.0 ft , what is the average thickness of the sheet in meters?
explain in detail, using thermodynamics principles, why the mixing of pure chemicals to form homogeneous mixture is a so-called spontaneous process
The models you have just studied represent achiral molecules. Their mirror images are identical. They are optically inactive. Any molecule that has a plane of symmetry is achiral.
Calculate the osmotic pressure of a 20% sucrose solution given that the molecular weight of sucrose is 342g.
At an altitude of 30 km, the temperature in the stratosphere is approx. -45.3 degrees F. What is the average kinetic energy of a single CF2Cl2 molecule at this temperature?
Calculate the experimental percent by mass of copper in the sample and the theoretical mass percent of copper in copper (II) acetate monohydrate.
Describe an electrochemical cell that would have the following net equation, by answering the following questions. Fe(s)+Ni^2(aq)-->Ni(s)+Fe^2+(aq)
What type of signal(s) would you observe in the mass and/or infrared spectrum of the following compound? c6h12cho A) A signal at 1600 cm-1
The product of the final step in the synthesis below are acetone and acetaldehyde. What are the identities of compounds A and B?
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