What is the value of ka for this unknown acid
The pH at one half the equivalence point in an acid-base titration was found to be 6.57, what is the value of Ka for this unknown acid?
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0.50 mol CCl4 gas is introduced into a 10.0-Lflask. What fraction of the total volume of the flask is occupied by CCl4 molecules? (Value of Van der Waalsconstant b for CCl4 = 0.138 L/mol )
An electron moving with a speed of 6.1x10^5 m/s in the positive x direction experiences zero magnetic force. When it moves in the positive y direction, it experiences a force of 1.9 x 10^-13 N that points in the negative z direction. Find the comp
A machine processes parts, one at a time. The processing times of different parts are independent random variables, uniformly distributed on (1,5). approximate the probability that the first 100 parts are processed within 320 time units.
Write an expression for the heat transfer rate per unit length, Q/L , between the pipe surface temperature and the outer insulation surface temperature. Then, find the temperature at the junction of the two insulating materials.
In a report on high school graduation, it was stated that 85% of high school students graduate. Suppose 3 high school students are randomly selected from different schools. What is the probability that all graduate?
It takes 2 hours to set up the machine to produce the part, and cost of system downtime is $150/hr. Determine (a) the most economical batch quantity for this part and (b) the associated total inventory cost.
The response variable was the Hamilton Rating Scale for Depression score. After collecting and analyzing the data, it was concluded that the new drug therapy is effective in the treatment of major depression.
A vase with a mass of 0.800 kilograms falls from a height of 0.750 meters to a position of 0.500 meters above the floor. Ignoring frictional effects, the total mechanical energy at the 0.500 position is _____.
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