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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?
Determine the numbers of grams of each reactant remain? In the reaction of potassium chlorate with sulphuric acid and iron, the products are: iron (III) chlorate, potassium chloride, water, and pota
Explain how much energy is needed to raise 1 gram of water (as ice) from -15 degree Celsius to 110 degree Celsius (as steam)? Remember to account for the latent heat needed for the ph
Calculate the binding energy of the electron in the kJ/ mol? KE =(1/2)(mv2); 1 electron volt eV = 1.602 *10-19J] An X-ray photon of wavelength 0.932nm strikes a surface. The emitted electron has a kin
A large electromagnet consists of a 28 T magnetic field among its poles. Determine the magnetic energy density among the poles?
Determine arc length corresponding to given angle (in degrees) on the circle of radius 2.5. The angle of 23 degrees has the arc length of how many units.
Explain the final temperature when both metals are placed in the water at 20 degree Celsius? A piece of gold weighing 10.0g(c=0.129 J/g-K) is heated to100.0 degrees Celsius.
Determine the volume of methanol formed in the answer (D) above. The density of methanol is 0.7914 g/mL. A small car of of 4- cylinder engine averages 24 miles per gallon in typical city driving.
What must the diameter of the axle be in order to increase the buckets at a steady 1.65 cm/s if it is turning at 7.8 rpm?
A tuning fork of 440Hz is held above the closed pipe. Determine the spacing between the resonances if the air temperature is 20 degrees C. Compare this spacing to the spacing generated on an open pi
The transverse waves travel with a speed of 20m/s in a string beneath a tension of 6N. Determine what tension is needed to generate a wave speed of 30m/s in the similar string?