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Calculate the volume of this gas sample when the absolute temperature is divided by four and the pressure is tripled if an isolated quantity of an ideal gas at 292.9 K has a volume of 18.77 L at a
The magnetic field at the center of 1.1 cm diameter loop is 2.6 mT. Determine the current in the loop? A long straight wire carries the similar current. Determine at what distance from the wire is
A 1.60 m diameter current loop having 210 turns of wire is set up so that the field at the center is precisely equivalent to the earth's field in magnitude however opposite in direction. Determine t
Explain why the 4s, 4p do, 4d, and 4f orbital have the same energy in hydrogen atom but they have different energies in many electron atoms?
Suppose the rope and pulley are mass-less and there is no friction in the pulley. If the masses are of 19.9 kg, compute their acceleration ‘a’ and the tension in the rope, T. Use g = 9.8
Find out the concentrations of dissolved F- and La3+ are in equilibrium with solid LaF3 when the sensing element of a fluoride electrode is made of lanthanum trifluoride, LaF3.
Find dimensions of box which has maximum volume that can be created from the sheet of cardboard? Determine the maximum volume?
Determine the largest amount of La3+ which can be added without causing the precipitation? If 1.00 mM La3+ is added to a solution and the equilibrium pH is7.0, will solid La(OH)3 precipitate.
Though, the superconductivity is destroyed when the magnetic field at the surface of the metal reaches or surpasses 0.10 T. Determine the maximum current in a straight, 3.2 mm diameter super-conduct
The activation energy for the reaction is 116 kJ/mol. Determine the numbers of times greater is the rate constant for this reaction at 250°C than it is at 200°C?
The length of a bicycle pedal arm is around 0.152 m, and a downward force of 148 N is exerted to the pedal by the rider's foot. Determine the magnitude of the torque around the pedal arm's pivot poi
A decolorizing step is calculated to be unnecessary, and there are no solidim purities present. Should you perform a filtration to eliminate the impurities before allowing the solution to cool?
Flywheel Rotating A flywheel having a diameter of 1.80 m is rotating at a rotational speed of 260 rev/min. i) Determine the rotational speed of the flywheel in rad/s?
Determine the value of the rate constant at 320 K if the activation energy is 90.2 kJ/mol.At 300 K the rate constant is 1.5 x 10-5 /M·s for the reaction:
In an area where the magnetic field is B = 2.5i + 3.6j + 1.5k, an electron moves with velocity v = -3.0i + 4.0j - 3.5 km where B is in tesla and v is in meters per second. Determine the magnetic for
Explain why stem less funnels are required instead of long-stem funnels to filter the hot solutions by using the Fluted filter paper and also determine that what will a soluble impurity do to the m
A solenoid employed to generate magnetic fields for research purposes is 2.1 m long, having an inner radius of 28 cm and 1300 turns of wire. If running, the solenoid generated a field of 1.3 T in th
When an arsenic (III) sulfide reacts with the oxygen to form arsenic (III) oxide and the sulfur dioxide as represented by this equation:
The plane of coil lies in the plane of this page and the current is flowing via the coil in a counter-clockwise direction. Determine the direction of the field?
What changes in procedure would be required to isolate the product if the fumaric acid were more soluble than the maleic acid.
Determine the final velocity of B? Determine the change in the net kinetic energy (comprising sign)?
Calculate the mass percentage of acetic acid in the solution when the pH of a white vinegar solution is 2.45 and this vinegar is an aqueous solution of acetic acid with a density of 1.09g/mL.
Find out the mass percentage of ammonium base in the solution when the pH of ammonium oxide solution is 11.87 and the ammonium oxide is an aqueous solution of ammonium with a density of 1.00 g/mL.
You weigh 590 N at side-walk level outside the World Trade Center in New York City. Assume that you ride from this level to the top of one of its 410 m towers. Avoiding Earth's rotation, determine h
At 37 °C the solubility of cholesterol in the 95% ethanol is 32.5 mg/mL and at 7 °C is 11.5 mg/mL. Explain how much 95% ethanol is needed to dissolve the 1 g of cholesterol at 37 °C?