Explain the ph at the equivalence point for the titration
Calculate the pH at the equivalence point for the titration of 20.0mL of 1.00 M HF with 0.500 M NaOH. Ka=3.5x10-4 for HF.
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The air used to heat an auditorium flows into the heating unit at a rate of 145 m3/min at -3°C and 100 kPa. What is the temperature of the air exiting from the heating unit?
During an Apollo lunar landing mission, one astronaut stayed in the command module which continued to orbit the Moon while two astronauts walked on the moon. If the command module was at an altitude of about 92 km above the surface of the moon, ho
A survey of US adults found that 19% are happy with their current employer. You randomly select 30 adults and ask them if they are happy with their current employer. Can a normal distribution be used to approximate the binomial distribution? If s
As a process engineer, you are asked to determine the emission rate of MeOH vapor from the tank in units of Kg MeOH/day when the tank is a temperature of 30C.
A roller coaster moving with a constant speed of 13 m/s, goes up and over a hill that has the shape of a circle at the top. If the radius of curvature of this section of the track is r = 32 m, find the apparent weight of a 67-kg person in the roll
For a prediction value of y' from a specific value of x, which of the following contribute to the prediction error?
Write the differential equation to find the temperature in the slab as a function of position. Write the boundary conditions necessary to solve the problem.
A 0.89% (w/v) sodium chloridesolution is referred to as physiological saline solution because ithas the same concentration of salts as human blood. What is the molarity of a physiological saline solution?
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