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13.0 mL of 0.40M copper(II) sulfate react to form as much product as possible, how many millimoles (mmol) of the non-limiting reactant will remain unused at the end of the reaction?
A woman is pushing a piano up a ram at aconstant velocity that is 30 degrees above the horizon. the piano is 200 kg. the force she is applying is parralell to the Friction free incline
A loudspeaker of mass 19.0 kg is suspended a distance of h = 2.00m below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l= 3.50m . What is the tension
A person can survive a feet-first impact at a speed of about 12m/s (27 m/h) on concrete; 15 m/s (34 m/h) on soil; and 34 m/s (76 m/h) on water. Why the different values for different surfaces?
Calculate the pressure (in pascals and atmospheres) exerted by a mass of 1.0 kg pressing through the point of a pin of area 1.0 x 10-2 mrrr' at the surface of the Earth. Hint. The force exerted by a
In the generation of polyurethanes (from diols and di-isocyanates), can you think of examples where use of less diol than diisocyanate might be a good idea?
A 2300 kg car moving east at 10.0 m/s collides with a 3000 kg car moving north. The cars stick together and move as a unit after the collision, at an angle of 47.0° north of east and at a speed
Amines react rather quickly with epoxy groups - how might you slow the reaction down to give your customer more time to apply the product? How might you speed it up?
An isolated conducting sphere has a 14 cm radius. One wire carries a current of 1.0000048 A into it while another wire carries a current of 1.0000000 A out of it. How long in seconds would it take f
Assuming that the door's center of gravity is at its center, find the horizontal components of force exerted on the door by each hinge.
Conducting rod is pulled horizontally with constant force F= 4.30 N along a set of rails separated by d= 0.480 m. A uniform magnetic field B= 0.800 T is directed into the page. There is no friction
Water flowing through a 2.0 cm diameter pipe can fill a 280 L bathtub in 5.0 minutes. What is the speed of the water in the pipe?
A gas mixture being used to simulate the atmosphere of another planet consists of 324 mg of methane, 217 mg of argon, and 228 mg of nitrogen.
The mass of the anhydrous, CaSO4 salt is 2.304 g. Calculate the percent by mass of water in the hydrated calcium sulfate salt.
A 41-cm length of wire has a mass of 6.0 g. It is stretched between two fixed supports and is under a tension of 160 N. What is the fundamental frequency of this wire?
How might the primary structure of such a protein help in distinguishing the portions of the protein embedded within the cell membrane from those positioned intracellularly or extracellularly?
A horse races once around a circular track in a time of 130 s, with a speed of 26 m/s. What is the radius of the track?
What weight of A would be removed by four successive extractions with 25mL portions of hexanes? How much hexanes would be required to remove 98.5% of A in a single extraction?
A sample of an alloy (density = 9.62 g/cm3) was submerged in a graduated cylinder containing water. The water level in the cylinder rose from 166.5 cm3 to 182.0 cm3. How many grams did the sample we
What is the purpose of the 'thermal conductivity of gases' experiment in lab?
A 100 mm diameter silicon wafer is oxidized completely. What is the thickness of the resulting SiO2 wafer? The molecular weight of Si is 28 g/mol.
What is the concentration of N2 gas at equilibrium when the concentration of NO2 is twice the concentration of O2 gas?
Suppose the highway is icy and the coefficient of friction between the tires and pavement is only one-third what you found in part A. What should be the maximum speed of the car so it can round the
A bicycle has wheels with a diameter of 0.67 m. It accelerates uniformly and the rate of rotation of its wheels increases from 191.0 rpm to 260.0 rpm in a time of 21.7 s. Find the linear accelerati
A skier with a mass of 84 kg hits a ramp of snow at 32 m/s and becomes airborne. at the highest point of flight, the skier is 4.7 m above the ground. what is the skier's gravitational potential ene