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Similar to magnesium, zinc also reacts with hydrochloric acid to form hydrogen gas according to the balanced equation below. Calculate the molar mass of zinc using the data provided in the table.Zn + 2HCl -> ZnCl2 + H2
Mass of metal sample 130.76 g
Number of moles of H2 2.000 mol
Calculate the rate at which the tank is filled in gallons per second. Calculate the rate at which the tank is filled in cubic meters per second. Determine the time interval, in hours, required to fill a 1.00-m3 volume at the same rate.
A full can of soda has a mass of 0.412 kg. It contains 3.32 10-4 m3 of liquid. Assumingthat the soda has the same density as water, find the volume ofaluminum used to make the can
A simply supported beam has a concentrated downward force P at a distance of a from the left support, as shown in the figure below. The flexural rigidity EI is constant. Find the equation of the Elastic curve by successive integration.
A rope of length L = 5.2 m with a total mass of m = 0.205 kg is tied to a hook rigidly mounted into a wall. What is the height of the pulse that returns
A block is sent up a frictionless ramp along which an x axis extends upward. The figure below gives the kinetic energy ofthe block as a function of position x; the scale of the figure's vertical axis is set by Ks =34.0 J.
A crying baby emits sound with an intensity of 8 × 10-8 W/m2. What is the intensity level for a set of twins? The lowest detectable intensity is 10-12 W/m2
A proton is projected in the positive x direction into a region of uniform electric field E = -5.50 105 i N/C at t = 0. Determine the time interval over which the proton comes to rest
ice of mass 15.0 kg at 0.00deg c is placed in an ice chest. the ice chest has 2.30 cm thick walls of thermal
A 7.50 g piece of iron at 100 C is dropped into 25.0g of water at 22.0 C. Assuming that the heat is lost by the iron equals the heat gained by the water, determine the final temperature of the iron/water system. Assume a heat capacity of water 4...
What is the difference between alternating current and direct current induction motors? Which motor do you think would be best to use on large pieces of equipment? Explain your choice.
Calculate the fundamental frequency of a 4 meter organ pipe that is open at both ends. Assume that the temperature is 20oC and the speed of the sound is 344 m/s.
A body is in motion at 1.0 m/s less than the speed of light. What is the Lorentz factor of this body
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