Determine the ph at the equivalence point
25 ml of 0.10 M acetic acid is titrated with 0.10 M NaOH. What is the pH at the equivalence point? Ka for acetic acid = 1.8× 10-5
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A researcher conducts a study of white and black attitudes toward the police in her community. The percentage of white respondents (N = 300) who say they have a favorable attitude toward the police is 55% with a 95% confidence interval of +/- 5.6%
Another charge is placed halfway between the two other charges (directly below the other corner of the triangle - see sketch). What does this charge need to be such that the total electric field in the third, unoccupied corner, of the triangle is
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Points A and B have electric potentials of 255 V and 129 V, respectively. When an electron released from rest at point A arrives at point C its kinetic energy is KEA. When the electron is released from rest at point B, however, its kinetic energy
Determine a) The initial and final temperature, b) the mass of the liquid water when the piston first starts moving, and c) work done during the process. Also, show the process on a P-v diagram.
A glass electrode with an internal pH of 7.00 is dipped into asolution whose pH is 11.40. If the factor β is 0.98, how much voltage is generated by the pH gradient?
The electric potential at the center of a square is -3 V when a charge of -Q is located at one of the square's corners. What is the electric potential at the square's center when identical charges of +Q are placed at the other three corners of the
A primary settling tank is to be designed for a municipal wastewater treatment facility. The average design flow is 2 MGD (peaking factor 2.1). Determine the diameter of the settling tank.
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