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A long, thin rod (length = 6.0 m) lies along the x axis, with its midpoint at the origin. In a vacuum, a +5.0C point charge is fixed to one end of the rod, and a -5.0C point charge is fixed to the other end. Everywhere in the x, y plane there is a constant external electric field (magnitude 3.0 × 103 N/C) that is perpendicular to the rod. With respect to the z axis, find the magnitude of the net torque applied to the rod.
Calculate [Ag+] when a precipitate first appears and identify the precipitate. The Ksp values for AgCl(s) and Ag2CrO4(s) are 1.8×10?10 and 1.1×10?12, respectively. (b) Calculate [Cl? ] and [CrO42? ]
Specified the Ka1 and Ka2 for carbonic acid are (4.45*10-7) and 4.69*10-11, respectively find out the alpha value for HCO3- at ph 5
The excess is titrated with standard 0.101 M KSCN solution, requiring 2.38 mL to reach the red Fe(SCN)2+ endpoint. Calculate the concentration of chloride in the brine in g/L
Perform each of the following calculations, and express the answer with correct number of significant figures only the bolded values are exact:
What volume of NaOH was delivered to reach the midpoint in this titration. At the midpoint the pH is measured at 4.75, what is the Ka for the weak acid
If 0.345 moles are produced during a reaction and collected at a temperature of 294K and pressire of .981 atm what volume will the gas occupy?
for the decomposition of an antibiotic in aperson with a normal temperature of 98.6 f k0.0000250 s-1. for a person with
Explain how this rectifier works. That is, show that when the semiconductors are connected to the terminals in an AC outlet, half the time a large flow of charge occurs and half the time essentially no charge flows across the p-n junction
a 64 g piece of ice at 0 degrees celsius is added to a sample of water at 9 degrees celsius. all of the ice melts and
If the vapor pressure of bromobenzene at 40C is 10mm Hg. Find out the phase of bromobenzene at 40C and 1atm.
How many inner, outer, and valence electrons are present in an atom of each of the following elements
What is the total mass of water raised 68.7 m during this 206.0 minute period? (in kg) How long can the turbines produce 335.0 MW of power from the release of the mass of stored water calculated above? Assume the water sustains a friction loss of ..
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