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A small drain plug with a cross-sectional area of 4.0 x 10^-5 m^2 is located 5.0 m from the bottom of the tank. The plug breaks loose from the tank, and water flows from the drain. (a) Calculate th
A 100.-L flask contains a mixture of methane, CH4, andargon at 25 degrees celcius. The mass of argon present is 228g and the mole fraction of methane in the mixture is 0.650. Calculate the total ki
Two gas cylinders are identical. One contains the monatomic gas neon (Ne), and the other contains an equal mass of the monatomic gas radon (Rn).
A longitudinal standing wave is established in a tube open at one end only. In air, the fundamental frequency is 110 Hz. What is the frequency of the 3rd harmonic when helium fills the tube? Take th
A charge of -5.0 mC is rigidly held on the x-axis at x = 4.3 m. Find the work (in Joules) done bringing a -10.0 mC particle in from infinity to x = 4.6 m. Please show your work.
A piece of metal weighing 5.10 grams at a temperature of48.6oC was placed in a calorimeter into 20.00 mL ofwater at 22.1oC, and the final equilibrium temperature was found to be 29.2oC. What is the
If an electron moved from a location with 10.0V potential to a location with a 25.0V potential, would its potential energy increase or decrease? Explain.
A solution contains 50.0g of heptane (C7H16)and 50.0g of octane (C8H18) at 25 degrees C.The vapor pressures of pure heptane and pure octane at 25 degrees Care 45.8 torr and 10.9 torr.
A lever is used to lift a heavy load. When a 40 N force pushes one end of the lever down 2.2 m, the load rises 0.8 m. Calculate the weight of the load.
A uniform rod is resting on a frictionless table when it is suddenly struck at one end by a sharp horizontal blow in a direction perpendicular to the rod. The mass of the rod is M and the magnitude
A Solution containing ethylene glycol and water has a vapor pressure of 7.88 torr at 10oC. Pure water has avapor pressure of 9.21 torr at 10oC. What is the mole fraction of ethylene glycol in the so
Calculate the final pressure of a sample of carbon dioxide (γ=1.40) that udergoes a reversible and adiabatic expansion from 57.4 kPa and 1.00L to the final volume of 2.00L.
If 77.0 mL of hydrogen gasis collected over water at 50 degree Celsius and 763 mm Hg, what isthe volume of dry gas at standard conditions (pressure is 1 atm andtemp is 0 degree Celsius)?
An object has initial velocity in the upward direction, a final velocity in the downward direction and undergoes constant acceleration. What can you say about it's average acceleration?
How much heat energy in kilojoules is required to convert77.0g of ice at -18 degrees celsius to water at 25 degreescelsius?
Find the angular wave number, period, angular frequency, and wave speed of the wave.
The vapor pressure of benzene is 100.0mmHg at 26.1 degrees celsius. Calculate the vapor pressure of a solution containing 24.6g of camphor dissolved in 98.5g of benzene.
Hydrogen peroxide solutions are purchased from chemical suppliers at a 3.0% by mass concentration. Calculate the molar concentration of a 3.0% H2O2 solution, assuming a density of 1.0 g/mL.
Suppose you have a box containing one mole of He atoms. If theenergy required to ionize a helium atom from its ground state toHe+ is 24.587 eV. Deterimine the ratio of the number of helium ions to
A driver traveling at 59 km/h sees a chicken dash out onto the road and slams on the brakes. Accelerating at -7 m/s2, the car stops just in time 22.7 m down the road. What was the driver's reaction
There are two compounds of titanium and chlorine. Onecompound contains 31.04% titanium by mass, and the second contains74.76% chlorine by mass.
A flow of water travels through a large pipe. In the water are pellets of plastic which float to the top, and smaller shards of plastic that flow throughout (basically don't float).
In general chemistry you learned thatoxidation meant any reaction which involves loss of electrons, butin organic chemistry oxidation often refers to an earlier, moreliteral, definition of the term
The ball leaves the student's hand with a speed of 12.0 when the hand is 2.20 above the ground. How long is the ball in the air before it hits the ground?
This is a question from my chemistry homework. For a, i'm notsure how to get the 10% part. For b I don't really understandnormality but i think that 0.1N = 0.1 M?