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A gas has a Henry's law constant of 0.150 M/atm. How much water would be needed to completely dissolve 1.49 L of the gas at apressure of 720 torr and temp of 14 C.
Determine the car's initial velocity, in kilometers per hour (km/h), and the duration of the braking.
A reaction is followed and found to have a rate constant of 3.36 x104 M-1s-1 at 344 K and a rateconstant of 7.69 M-1 s-1 at 219 K. Determine the activation energy for this reaction
Two charges of 15 pC and -40 pC are inside a cube with sides that are of .40m length. Determine the net electric flux through the surface of the cube.
If the concentration of carbonic acid (H2CO3) in the blood is0.0024 M, and the pH is 7.4, what is the concentration of bicarbonate ion (HCO3-)? Assume an equilibrium constant of4.2x10-7 for the diss
If the coefficient of kinetic friction between the box and the roof is 0.55, with what speed should you push the box to have it gently come to rest at the edge of the roof?
Two blocks connected by a cord that passes over a frictionless pulley. The arrangment is know as Atwood's machanic. One block has mass of 1.3kg, the other has mass of 2.8kg. What are (a) the magnitu
In a game of basketball, a forward makes a bounce pass to the center. The ball is thrown with an initial speed of 4.6m/s at an angle of 15 degrees below the horizontal. It is released 0.90m above th
A 211 lb man eats an order of FrenchFries consuming 250 Cal of food energy. Afterwards he feels guiltyand decides to work off the excess calories by walking upnine flights of stairs 2.0 times. (The
The forces that he exerts on the front and back covers of the book are perpendicular to the book and are horizontal.
A 100-W incandescent light bulb has a cylindrical tungsten filament 31.0 long, 0.420 in diameter and with an emissivity of 0.240. a) What is the temperature of the filament?
A basketball is inflated to 9.0 psi (pounds per square inch) above atmospheric pressure of 14.7 psi (a total of 23.7 psi). The diameter of the basketball is 10. inches.
A box rests on the floor of an elevator. Because of static friction, a force is required to start the box sliding across the floor when the elevator is (a) stationary,(b) accelerating upward, and (c
An alcohol solution contains 50.0 g of1-propanol (C3H7OH) and 155.0 g of ethanol (C2H5OH).Calculate the mass percent and the mole fraction of each alcohol.
Find the cost to operate one such string 24.0 h per day for the Christmas season (two weeks), using the rate $0.14/kWh.
Am infinetly long line charge having a uniform charge per unit length λ lies a distance d from point O. Determine the total electric flux through the surface of a sphere of radius R centerd a
Take the potential of the negative plate to be zero. If the potential halfway between the plates is then +4.0 V, what is the electric field in the region between the plates? (Take directly towards t
How many mL of 0.2 M sodium acetate should be added to 200 mLof 0.1 M acetic acid to make a buffer of pH 5? What will the total concentration of acetate be in the solution (acetate + aceticacid)?
The magnetic field inside a 4.0cm diameter superconducting solenoid varies sinusoidally between 8.0T and 12.0T at a freqency of 10Hz. a) What is the maximum electric field strength at a point 1.5cm
Calculate the boiling point of a solution containing 50.00g ofsodium phosphate dissolved in 175.0g of dihydrogen monoxide.
Two balls, of masses ma= 36 g and mb= 68 g are suspended from the horizontal on a string 30 cm. Ball a is pulled away from ball b at an angle of 60 degrees with the vertical and released. a) what i
Pure benzene has a freezing point of 5.45 C and a boiling point of80.2C. Its constants for freezing point depression and boilingpoint elevation are -5.07 C/m and +2.53 C/m .
What electric field strength and direction would allow the honeybee to hang suspended in the air?
A solid conducting sphere of radius 2.00 cm has a charge 10.90 µC. A conducting spherical shell of inner radius 4.00 cm and outer radius 5.00 cm is concentric with the solid sphere and has a c
Half way through grading last semester's final, your illustrious instructor got really depressed and decided that Barbancourt 5-Start would help.