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Determine an approximate value for Avogadro's number. Iron crystallizes in a body-centered cubic structure. The volume of one Fe atom is 8.39e-34 and the density of Fe is 7.874 g/cm3.
Find out the shortest length of an open pipe which will resonate at 0 degrees C with a fork of frequency 160 cy/sec. Determine the frequency of the sound overtone when the temperature rises by 10 de
Calculate the highest energy conformation of the 1-bromo-2-propanol? The would Br and OH be eclipsed or Br and the methyl group?
Calculate the freezing point of benzene at the 1000 atm when benzene freezes at 5.5C its density changes from 0.879 g/cm3to 0.891g/cm3. Its enthalpy of fusion is 10.59kJ/mol.
Determine the contribution to the magnetic field (in vector form) due to a part of current of length dl at (R, 0, 0)
Calculate the maximum rate of loss of water? Suppose that all the radiant energy is absorbed. In July in Los Angeles, the incident sunlight at ground level has a power density of 1.2 kW/m2&
A charge of 6.00 µc is moving with the speed of 7.50x10^4 m/s parallel to a very long, straight wire. The wire around 5.00 cm from the charge and carries a current of 67.0A in a direction oppo
Identify the empirical formula of mesitylene. This is a combustion reaction. All the carbon in the CO2 formed comes from the sample. Mesitylene is a liquid hydrocarbon.
A piece of copper also weighing10.0g(c=0.385 J/g-K) is chilled in an ice bath to 0 degrees Celsius. A piece of gold weighing 10.0g(c=0.129 J/g-K) is heated to100.0 degrees Celsius. Both pieces of me
If you walk, your Achilles tendon, that connects your heel to your calf muscles, repeatedly stretches and contracts, much similar to a spring. This helps make walking more proficient. Assume that yo
Explain why does Helium have more spectral lines than the Hydrogen? Explain would you accept the spectrum of the He+ ion to be a complex as the spectrum of He?
Determine the volume change upon mixing sufficient ethanol with the 2.00 mol of water to give this concentration. The partial molar volumes of ethanol and water in a solution with x(H20) = 0.60 at 2
Photos disclose that the lighter fragment traveled straight up and reached an utmost height of 530 m Determine the speed of the heavier fragment just subsequent to the explosion?
Execute a degree-of-freedom analysis to illustrate that enough information is available to determine the required condenser outlet temperature in the degree C and cooling rate in (kW).
Blue light penetrates deepest into ocean. Blue light in clearest ocean has the attenuation coefficient of k=-0.035m-1. What percent or fraction of blue light at sea surface penetrates to depth of 60m?
The ends of the wire are joined to opposite ends of the diagonal of the rectangle. The vertical magnetic field of 0.80 T is present. Determine magnetic force which acts on this segment of wire?
You will be using a Ready Gel Pre-Cast, Tris-HCl Polydactyl amide gels (10% or 15%) Discuss how are these particular types of gels produced?
Discuss how much grams of barium phosphate will precipitate when 0.629g of sodium phosphate, molar mass of 380.2 and0.5279g of barium chloride, molar mass of 601.96 is mixed with the water to a vol
When the first wave hits a boundary among the two mediums traveling at 10 Km/sec at an angle of incidence of 40 degrees, causing the angle of refraction of 30 degrees. Compute its velocity in the se
Determine the balanced molecular equation for the reaction? The Mn(2+), K+ and Na+ all react to form 3 different sulfate salts. Explain will the free electrons appear in the equation as reactants or p
The age of earth is about 4600 million years. If half-life of 40K is 1.25*109yrs, what fraction of original 40K is present at formation of earth exists today?
A person holds a rifle horizontally and fires at the target. The bullet consists of a muzzle speed of 200 m/s, and the person hear the bullet hit the target 1.70 s after firing it. The air temperatu
If 1.598 of TiO2 produces 1.438 g of Ti(x)O(y), determine the empirical formula of the new oxide? Titanium (IV) oxide (TiO2) is heated in the hydrogen gas to give a new titanium oxide, Ti(x)O(y) an
A piece of string 5.3M long consists of a mass of 15g. What should the tension in the string be to make, in a 125HZ wave, a wavelength 120cm long?
Explain what could you notice from an image of the carbon atoms in the graphite made by using a special electron microscope?