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gas is contained in a 900-l vessel at a temperature of 250degc and a pressure of 500 atma determine the number of moles
calculate the content or concentration for each substance in the following mixturesa a solution that contains 250 ml of
a pound of coffee beans yields 50 cups of coffee 4 cups 1 qt how many milliliters of coffee can be obtained from 8 g
in the isothermal compression of an ideal gas the volume occupied by the gas is decreasing but the temperature of the
a large 60g hailstone of ice at 00 celsius falls 150m and undergoes a completely inelastic collision with the eartha
a circular area with a radius of 740 cm lies in the x-y plane 1 what is the magnitude of the magnetic flux through this
benzene is an organic liquid that freezes at 55 degrees celsius how much heat is evolved when 255g of benzene freezes
a hunter wishes to cross a river that is 21 km wide and that flows with a speed of 38 kmh the hunter uses a small
the molar heat of fusion of water is 601kjmol how much heat energy is required to melt one ice cube in a soft drink to
a bicycle tire of radius 038 m has a piece of gum stuck on its rim what is the angle through which the tire rotates
the recommended daily allowance rda of calcium is 1200 mg calcium carbonate contains 12 calcium by mass how many grams
if cholesterol build-up reduces the diameter of an artery by 15 what will be the effect on blood
the density of magnesium is 17 gcm3 and the density of iron is 79 gcm3 consider a block of iron with a mass of 819 g
a uniform board is leaning against a smooth vertical wall the board is at an angle above the horizontal ground the
a patient is to be given a blood transfusion the blood is to flow through a tube from a raised bottle to a needle
the figure below shows particles 1 and 2 each of mass m attached to the ends of a rigid massless rod of length l1 l2
a 9911 g sample of a highly radioactive element is determined to contain 04271 mol of the element what is the
a pilot flying a constant 215 kmh horizontally in a low-flying helicopter wants to drop secret documents into his
a small block with mass m1 rest on a frictionless horizontal tabletop a distance r1 from a hole in the center of the
plot boiling point bp y-axis versus molecular weight mw x-axis for the first four compounds listed in the table
a vertical solid steel post of diameter d 30 and length l 300 is required to support a load of mass m 7700 you can
a lab centrifuge with radius 11cm turns at 77 revs what should be its angular acceleration for a point at the 11cm
the x rays used for both scientific and medical applications are usually produced by making high-velocity electrons
a track has a height that is a function of horizontal position x given by hx x3 2x2 14x 16 find all the positions
a ball falls straight down onto a wedge that is sitting on frictionless ice the ball has a mass of 333 kg and the wedge