How many moles of zinc oxide are produces
2ZnS + 3O2 = 2ZnO + 2SO2 how many moles of Zno are produces when 32 gms of oxygen is allowed to react with an excess of ZnS?
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With the engines off, a spaceship is coasting at a velocity of +290 m/s through outer space. It fires a rocket straight ahead at an enemy vessel. The mass of the rocket is 1400 kg, and the mass of the spaceship (not including the rocket) is 4.0 10
Two IC op-amps are available which one is the best and why? Op-amp1: Zin = 5 Mohm, Zout = 100 ohm , Aol = 50,000 Op-amp 2: Zin = 10Mohms, Zout = 75 ohms, Aol = 150,000?
Calculate the equilibrium value of Pb+2(aq) in 1.00 L of saturated PbC12 solution to which 0.250 moles of NaCl(s) has been added. Assume that no volume change occurs.
The bromination of anisole to provide the major product you proposed. Write the resonance structures for any charged, delocalized intermediates that are involved.
A rifle is aimed horizontally at a target 50.0 m away. The bullet hits the target 1.70 cm below the aim point. What was the bullet's flight time? What was the bullet's speed as it left the barrel?
Assuming equal concentrations of conjugate base and acid, which one of the following mixtures is suitable for making a buffer solution with an optimum pH of 9.2 - 9.3?
Carbon tetrachloride flows with a velocity of 0.30m/s through a 30mm diameter tube. A model of this system is to be developed using standard air tube as the model fluid.
Cumene,a hydrocabon is a compound composed only of C and H. It is 89.94% carbon, and its molar mass is 120.2g/mol. What are the empirical and molecular foemulas of cuene?
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