How many moles of phosphine (ph3) are produced
How many moles of phosphine (PH3) are produced for every 4.0 moles of hydrogen that react according to the chemical equation below? Hint: Mole-Mole Cal.3 H2 + P2 -> 2 PH3
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In the circuit shown in Figure A-4, the zener diode is rated at 5.6 V and is operating in the zener region. If the voltage from the variable DC power source is 10 V, what would be the measured voltage between points A and B?
suppose a can contains gas at a pressure of 755 mm Hg and a temperature of 25 degrees celsius, what would be the pressure if the can was heated to 1155 degrees celsius .
You are working as a project analyst for the local gas utility, and you have been placed on a project to install an 11,000 foot segment of gas transmission line.
A clean nickel surface is exposed to light of wavelength of 235nm. What is the maximum speed of the photoelectrons emitted from this surface. The work function for nickel is =5.1 eV. Answer: 2.5x105 m/s The threshold of dark-adapted (scotopic)
How many moles of phosphine (PH3) are produced for every 4.0 moles of hydrogen that react according to the chemical equation below? Hint: Mole-Mole Cal.
Determine the maximum displacement of the plate A if the billet strikes the plate with a speed of 8 . Neglect the mass of the springs, rollers and the plates A and B. Take = 4000 , = 40000.
Aluminium is a trivalent element with atomic weight of 27 gm/mole and density of 2.7*103 kg/m3, with a mean free time between electronic collissions of 4*10-14s. Calculate the current that flows in a 10m long AL wire that has a 1 mm2 cross sec
how much energy is liberated when 366 g of mercury (c=0.139j/g degrees celsius)cools from 77.0 to 12.0 degrees celsius?
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