The two electrodes crcr3 and snsn2 are combined to afford a
The two electrodes Cr/Cr+3 and Sn/Sn+2 are combined to afford a spontaneous electrochemical reaction. The standard reduction potentials (volts) for Cr+3 and Sn+2 are -0.74 and -0.14, respectively. Calculate E° for this reaction.
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Water flows through a 4-cm pipe, wrought iron, horizontal pipeline 50-m long from point A to B, and contains a fully opened gate valve and two elbows (R/D = 4).
A 160.0 L helium tank contains pure helium at a pressure of 1870 psi and a temperature of 298 K. How many 3.5 L helium balloons can be filled from the tank
An air conditioner connected to a 129 V rms ac line is equivalent to a 17 capital omega resistance, What is the impedence of the air conditioner
A parallel-plate capacitor in air has circular plates of radius 3.8 cm separated by 1.1 mm. Find the time rate of change of the electric field between the plates
A cylindrical tank 5-m in diameter is filled with water to 3-m depth. A very short horizontal pipe with 20-cm diameter and rotary valve is used to drain the tank from the bottom.
A laser pulse has an energy of 25 J and a beam radius of 2 mm. The pulse duration is 6 ns and the energy density is constant within the pulse. What is the spatial length of the pulse
Why is are quarterly movements in a country‘s GDP measure so important? What is it called when a country has two successive negative quarters of economic growth?
Two solenoids of radii 2 cm and 5 cm are coaxial. They are each 25 cm long and have 380 and 960 turns, respectively. Find their mutual inductance in mH
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