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Explain what type of intermolecular force accounts for the following differences in each case?CH3SH boils at 6 degrees Celsius, CH3OH boils at 65 degrees Celsius.
A hockey puck of 110 g sent sliding over ice is stopped in around 15 m by the frictional force on it from the ice. (i) When its initial speed was 4.0 m/s, determine the magnitude of the frictional for
The student's body temperature eventually dropped from40oC to 37oC. A feverish chemistry student weighing 75 kg was immersed in the 400 kg of water at 4.0oC in an attempt to reduce the fever.
This is only dividend to be paid in coming year. A 1-year 200-strike call option on stock has the price of 4. Determine 180-strike put option price?
Calculate the order of magnitude to which the pressure must be reduced so that the electron beam attenuation by electron - H2 collisions is 1/e over the 0.5m length for a cathode ray tube to deliver
What would you expect to see the after the second development if a TLC plate showed two spots at 0.25 and 0.26 Rf. The plate was removed, the residual solvent evaporated and then the plate was retu
Determine the heats of combustion for the following reaction from the standard enthalpies of formation. Express answer in kilojoules.
Determine the electrical field due to a line charge. Find out the expression of the field for infinitely exceed the line charge? Determine the expression for torque on a current loop. Find out the m
A concave shaving mirror consists of a radius of curvature of 34.0 cm. It is placed so that the (upright) image of a man's face is twice the size of the face. Determine how far is the mirror from th
Borax exists in 3 forms: a pentahydrate, hydrous & decahydrate. Borax is a widely used chemical with such diverse uses as detergents & ant poison. If you were trying to optimize the maximum
A flexible stick 2 m long is not fix in any way and free to vibrate. Sketch a clear drawing of the stick vibrating its first three harmonics, and then employ your drawing to determine the wavelength
A proton moving with the speed of 2.1 cross 107 m/s enters an area of space where there is a uniform magnetic field having magnitude 0.25 T. When the proton moves perpendicularly to B, determi
It is evalauted that annual sales of the new product will be 2,000 first year and increase by 1,000 per year until 5,000 are sold during 4th year.
The ball rebounds in the opposite direction having a speed of 7 m/s. Determine the angular speed of the bar just after the collision.
Determine the weight of the KCl residue when the 3.00 grams of KClO3(s) is decomposed according to the reaction 2KClO3->2KCl(s)+ 3O2(g)?
(i) When the student walks slowly from the edge toward the center, determine the angular speed of the system if she reaches a point of 0.489 m from the center.
A Carnot engine operates among the Tc, 273.15 K and Th, 298.15 K, using 1.00mol of an ideal monatomic gas. During the isothermal expansion step, the volume changes to 50.0L. The initial pressure-vo
Given alkaline, write down a chemical equation showing the equilibrium illustrating its structures below pK1 (pH=1), at pI (pH=6), above pK2 (pH=10).
Write each of the given in symbolic notation (ensure to give dictionary for each) and find whether argument is valid using the truth table.
You drop a ball of 10 g from a height of 1.0 m and it just bounces back to the height of around 0.70 m. Find out the net impulse on the ball when it strikes the floor? (Avoid air resistance)
Sketch all steps in the synthesis of each of the following compounds using only the organic starting material given, plus any needed organic/in organic reagents.
A baseball of 175 g moving all along the x-axis with the speed 36.0 m/s, hits a fence at a 45 degree angle and rebounds all along the y-axis with unchanged speed. Write down the x and y components
Determine the final temperature when 50mL of water at the 40 degrees C are added to 25mL of water at 20 degrees C
(i) When its initial speed was 6.0 m/s, determine the magnitude of the frictional force? (ii) Determine the coefficient of friction among the puck and the ice?
What is the heat capacity of the metal when a piece of metal weighing 10 g at a temp of 38C was placed into the 1.00 mL of water in a calorimeter at the 22C, and the final equilibrium temp was foun