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Calculate the amount of energy released per gram of hydrogennuclei reacted for the following reaction. The atomic masses are11H, 1.00782 amu, 21H,2.01410 amu, and an electron, 5.4858 x 10-4 amu.
An astronaut is rotated in a horizontal centrifuge at a radius of 5.0 m. (a) What is the astronaut's speed if the centripetal acceleration is 5.0g?
What is the mechanism when acetanilide reacts with bromine by an electrophilic substitution mechanism to produce bromoacetanilide?
Snow is falling vertically at a constant speed of 8.0 m/s. At what angle from the vertical do the snowflakes appear to be falling as viewed by the driver of a car traveling on a straight road with a
If a temperature increase from 20.0deg.C to 36.0deg.Ctriples the rate constant for a reaction, what is the value of the activation barrier for the reaction?
Find the car's position relative to the base of the cliff when the car lands in the ocean
A skier is accelerating down a 30.0° hill at 4.00 m/s2 . (a) What is the vertical component of her acceleration?
If 10 mL 0.10 M Ba(NO3)2 ismixed with 10 mL 0.10 M KIO3, a precipitate forms. Which ion will still be present at appreciable concentration in theequilibrium mixture if Ksp for barium iodate is verys
How long will it take her to reach the bottom of the hill, assuming she starts from rest and accelerates uniformly, if the elevation change is 305 m?
The equilibrium constant Kc for the reaction: has the valueof 4.00 at 500K. If a mixture of 1.00 mol CO and 1.00 mol H2Ois allowed to reach equilibrium at this temperature in a 1.00Lflask, calculate
A projectile is shot from the edge of a cliff 165 m above ground level with an initial speed of vo=105 m/s at an angle of 37.0° with the horizontal (a) Determine the time taken by the projectile t
A Hollywood daredevil plans to jump the canyon (d=58 m, h=17 m) on a motorcycle. Assume he desires a 3.1 second flight time. (a) What is the correct angle for his launch ramp?
The complete neutralization of 0.0527 moles of monoprotic acid with excess NaOH evolves 2.82kJ of heat. What is the molar heat of neutralization of the acid with NaOH from his data.
The concentration of carbon monoxide in an urban apartment is48 μg/m3. What mass of carbon monoxide in grams is present in a roommeasuring 9.5 * 12.5 * 20.0 ft?
A train moving at a constant speed of 58.0 km/h moves east for 45.0 min, then in a direction 56.0° east of due north for 13.0 min, and then west for 75.0 min. What is the average velocity of the
What must be the molarity of an acetic acid solution if it has thesame percent ionization as 0.100 MHC3H5O2 (propionic acid,Ka=1.3 x 10-5)?
If a microwave oven took75 seconds to heat 1.00 cups of water from 15.8 to95.9oC, how many photons per minute does the ovenemit?
A third charge of +5.3 micro-Coulombs is placed at x = -0.27 m, y = 0 m. At what angle is the total electric filed is directed at the the point x = 0 m, y = +0.14 m if measured counter-clockwise fro
What would be the effect of carrying out the sodium iodide in acetone reaction with the alkyl halides using an iodide solution half as concentrated
Pam, wearing a rocket pack, stands on frictionless ice. She has a mass of 41 kg. The rocket supplies a constant force for 22.0 m, and Pam acquires a speed of 64.5 m/s. Assume that air resistance is
The solubility product for a sparingly soluble transition metalsalt, M2X, equals 3.80E-19. The formation constant for theformation of the hexaammine complex of the transition metal ion[M(NH3)6]2+ in
An x-ray photon of wavelength 150.0 pm is absorbed by a stationary helium atom. (a) What is the momentum of the photon?
If, instead of building a Daniell cell, you added a pieceof zinc metal to a beaker con-taining a solution of Cu+2what would you expect to happen?
Two Cylindrical wires of identical length are madeof copper and aliminum. If they carry the same current and have the same potential difference across their length, what is the ratio of their radii?
How many grams of sodium formate (HCOONa) must be dissolved in a 0.250 M solution of formic acid (HCOOH) to make 500.0 ml of a buffer solution with a pH=4.60?