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How many grams of acrylonitrile (C3H3N) would be produced if we began with 15 grams of propene(C3H6), 5 grams of ammonia(NH3), and 10 grams of oxygen?
A mixture of ordinary hydrogen atom and tritium, a hydrogen isotope whose nucleus is approximately 3 times more massive than ordinary hydrogen, is excited and spectrum is observed . How far in wavel
Calculate the density of fluorine gas at a pressure of225KPa and temperature of 115 degrees celsuis (in g/L)7) 4.50 x 10^3 mL of CH4 at STP is equivalent to how many grams?
The gas first expands isobarically until the volume doubles. Then it expands adiabatically until the temperature returns to its initial value. Assume that the gas may be treated as an ideal gas with
Nitrogen gas (N2) reacts with hydrogen gas(H2) to form ammonia (NH3) at 200°C in aclosed container. 1.41 atm of nitrogen gas is mixed with 2.32 atm of hydrogen gas. At equilibrium the total pres
You connect both ends of a copper wire, with a total resistance of 0.10 O, to the terminals of a galvanometer. The galvanometer has a resistance of 845 O. You then move a 10.0-cm segment of the wire
An electron and a positron can rotate about their center of mass as if they were a dumbbell connected by a massless rod. What is the orbital frequency for an electron and a positron 1.20 nm apart?
If the sail material has a density of 600.0 kg/m3, what is the maximum thickness of the sail for which the force due to radiation pressure exceeds the gravitational force on the sail?
(a) At a point on the rope a distance r from the end that is held, what is the tension F? (b) What is the speed of transverse waves at the is point? (c) Find the time required for a transverse wave
A 0.21 m3 drum contains 100L of a mixture of several degreasing solvents in water. The concentraton of trichloroethylen in the headspace ( gas phase) above the water was measured to be 0.00301
The bullet has a mass of 3.00g and the rod rotates around its center. Right after the collision its has ω = 10.0 rad/s. What was the speed of the bullet before it hit the rod?
The nuclide hafnium-171 has a half-life of 12.0 hours. What amount of a sample of this nuclide that originally had a mass of 75 mg remains after 3 days?
The current through the solenoid increases by 21.21 A. The permeability of free space is 1.25664 × 10-6 N/A2. By how much does the magnetic flux through the solenoid change? Answer in units of &
A point charge q1 = -2.0 C is at the origin, and a second point charge q2 = +5.4 C is at the point x = 1.3 m, y = 3.0 m. (a) Find the x and y coordinates of the position at which an electron would be
A lens having a focal length of 20.8 cm is used as a simple magnifier. (a) what is the angular magnification obtained when the image is formed at the normal near point (q= -25.0 cm)?
Initially the cockroach and disk rotate together with an angular velocity of 0.200 rad/s. Then the cockroach walks half way to the center of the disk. (a) What then is the angular velocity of the co
The first step in the industrial preparation of nitric acid is the production of nitric oxide (NO) from ammonia gas and oxygen gas;the other product is water vapor.
A softball of mass 0.220 that is moving with a speed of 7.1 collides head-on and elastically with another ball initially at rest. Afterward the incoming softball bounces backward with a speed of 3.4
A 5 gram cart is released from rest 1 meter from the bottom of a frictionless, 30 degree ramp. The cart rolls down the ramp and bounces off a rubber block at the bottom.
8.69 g of zinc metal is heated in a dry test tube in aboiling water bath to 99.95 °C. The hot zinc metalis then dropped into 98.55 g of water at 20.65 °C in acalorimeter. The mixture of
When excess aqueous ammonia is added to Ni(OH)2 the solid dissolves and the complex ion Ni(NH3)6^2+ is formed. Write the net ionic equation for the rxn.
If an element consisted of three isotopes in the following relative abundance, what would the atomic weight of the element be? this is a hypothetical example.
How much heat is released in the oxidation of 3.68 L of methanol at 1.05 atm and 298 K? Give your answer in kJ (absolute value) to 3 significant figures.
When we rotate the polarizer, does the intensity of the reflected ray change? Which kind of polarization takes place here? Why? Please use your best judgment when answering this question.
An electron in the n = 7 level of the hydrogen atom relaxes to a lower energy level, emitting light of 397 nm. What is the value of n for the level to which the electron relaxed?