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Kodel is a condensation polymer made from terphthalic acid and1,4-cycohexandimethanol. Write the structure of the resulting polymer.
A 5.9 kg bucket of water is raised from a well by a rope. If the upward acceleration of the bucket is 3.4 m/s2, find the force exerted by the rope on the bucket.
Vector A has a magnitude of 12 units, vector B has a magnitude of 25 units, and A · B has a value of 14.0. What is the angle between the directions of A and B?
If a 1.0 m solution of glucose, Na2SO4and (NH4)3PO4, is made, which one will have the lowest vapor pressure, highest boiling point and lowest freezing point?
A shopper in a supermarket pushes a loaded cart with a horizontal force of 9 N. The cart has a mass of 32 kg. (a) How far will it move in 7.0 s, starting from rest? (Ignore friction.)
A block of weight w sits on a plane inclined at an angle theta. The coefficient of kinetic friction between the plane and the block is Mu. What is the change in the potential energy of the block, (c
A student collected hydrogen gas in a buret by displacing water at26.0 degrees Celsius. The buret could not be submerged deepenough in a water bath to equalize the pressure.
A 4.7 g bullet leaves the muzzle of a rifle with a speed of 324 m/s. What force (assumed constant) is exerted on the bullet while it is traveling down the 0.9 m long barrel of the rifle?
A boat moves through the water with two forces acting on it. One is a 1800 N forward push by the water on the propeller, and the other is an 1100 N resistive force due to the water around the bow.
A projectile is launched with a speed of 41 m/s at an angle of 55° above the horizontal. Use conservation of energy to find the maximum height reached by the projectile during its flight.
A freight train has a mass of 1.8 107 kg. If the locomotive can exert a constant pull of 8.1 x 105 N, how long does it take to increase the speed of the train from rest to 84 km/h?
Copper crystallizes in a face-centered cubic lattice. If theedge of the unit cell is 351 pm, what is the radius of the copperatom?
How much work is required to pull him 65 m up a 30° slope (assumed frictionless) at a constant speed of 2.7 m/s?
A crude organic compound containing traces of sulfuric acid is dissolved in dichloromethane, and then "washed" with water. Will the organic compound be dissolved in the upper layer? Breifly explain
Demonstrate that if 100mL of solution of a5.0 g of A in water were extracted with two 25 mL portion of ether,a smaller amount of A would remain in the water than if the solution was extracted with o
Astudent spots an unknown sample on a TLC plate and develops it in adichlormethane solvent. Only one spot develops with an RF value of 0.95. This single test does not verify that the unknown substan
Acolorless unknown substance is spotted on a ZTLC plate And developed in the correct solvent. The spots do not appear when visualization with at UV lamp or iodine vapors is attempted.
A 9.0 kg object undergoes an acceleration of 2.3 m/s2. (a) What is the magnitude of the resultant force acting on it?
The sledge moves a distance of 19.8 m on a horizontal surface. The coefficient of kinetic friction between the sledge and surface is 0.500. What is the tension of the rope? How much work is done by
How does the absorption of carbon dioxide from the atmosphere affect the molar concentration of a standardized sodium hydroxide solution? Explain with assistance of an equation.
What is the balanced net ionic reaction for the neutralization reaction between solutions of sodium hydroxide and hydrochloric acid?
What is the magnitude and direction of the force on that wire due to the earth's magnetic field?
In terms of the number of proton signals that will be present, explain how and why the proton NMR spectrum of the product of today's reaction would appear different from that of the starting material.
Aside from the 0-H alcohol (H-Bonded) absorption at 3600 - 3200 cm-1, what other IR stretching frequencies would you anticipate finding on the Infrared spectrum of the product?
How many moles of hydrogen is present in 38.6 mL of H2 collected over water at 25 degrees C and at a pressure of 748 torr? Please give details on how to solve!