What are the moloar concentraitions of k+ and cr2o7
some potassium dichromate, K2CrO7, 2.335 g is dissolved in enough water to make 500. mL of solution. what are the moloar concentraitions of K+ and Cr2O7^2.
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Which photon has a shortest wavelength when emitted from an atom that transitions from an excited energy to a lower energy?
The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 5.70mL of a 0.330M HCl solution to the beaker. How much will the pH change? The pKa of acetic acid is 4.760.
A rifle with a barrel length of 61 cm fires a 8 g bullet with a horizontal speed of 440 m/s . The bullet strikes a block of wood and penetrates to a depth of 15 cm. What resistive force (assumed to be constant) does the wood exert on the bullet?
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Describe how you would incorporate the new servers into the environment proposed in Assignment 1 and how you would address what additional changes might be needed.
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A tennis player standing 11.4 m from the net hits the ball at 2.96° above the horizontal. To clear the net, the ball must rise at least 0.294 m. If the ball just clears the net at the apex of its trajectory, how fast was the ball moving when i
A 1.630 -,g sample of naphthalene, C10H8(s)is completely burned in a bomb calorimeter assembly and a temperature increase of 8.46 degrees Celsiusis noted. If the heat of combustion of naphthalene is -5156 kj/mol C10C8, what is heat capacity of th
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