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Imagine that you have a 5.00 gas tank and a 4.00 gas tank. You need to fill one tank with oxygen and the other with acetylene to use in conjunction with your welding torch. If you fill the larger tank with oxygen to a pressure of 155 , to what pressure should you fill the acetylene tank to ensure that you run out of each gas at the same time? Assume ideal behavior for all gases.
A salt bridge connects the two beakers, and wires to a voltmeter link the two metal electrodes. What is the equation for the equation for the overall cell reaction. What is the emf generated by the cell under standard conditions
Determine which ion will precipitate first and at what concentration of sulfate ion will the first precipitate begin to form?
The energy of a photon is 9.61 x 10 ^ -20 J . What is its wavelenght( in nanometers)? Enter your answer in scientific notation
Suppose you did the bromination of cholesterol using bromine in DMSO(dimethyl sulfoxide)/H2O mixture (instead of acetic acid). What product(s) would you get?
A sample of lead releases 221 kJ of heat when freezing. What is the mass of the sample? DHfus = 23 J/g
consider the reversible reaction ag lt---gt 2bgat equilibrium the concentration of a is 0.381 m and that of b is 0.154
Calculate the molar concentration of ferrocyanide in a solution of 0.031 M ZnSO4 saturated with Zn2Fe(CN)6. ZnSO4 will be completely dissociated into Zn2+ and SO42-
a current of 2.40 a is passed through a solution containing cu2aq for 30.0 minutes with copper metal being deposited at
For each of the following cases, identify the order with respect to the reactant, A. Case (A ----> product) 1. The half-life of A increases as the initial concentration of A decreases
The solubility of O2 in water is 0.590 g/L at an oxygen pressure of 15 atm. What is the Henry's law constant for O2 (in units of L atm/mol)
Assume that you are an experienced organic chemist with perfect recrystallization technique. You recrystallize 10g of impure naphthalene from Ethanol in Corvallis, OR (elevation; sea level) and recover 7.4g of pure naphthalene.
Discuss how plastics are used in everyday life and cutting edge technology and what the pitfalls are of plastics.
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