What is the ph at the equivalence point in the titration of
What is the pH at the equivalence point in the titration of 25.00 mL of 0.020 M NH3 with 0.015 M HBr? Kb for NH3 = 1.8 x 10^-5
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A small sphere of mass m= 7.60 g and a charge q1 = 29.9 nC is attracted to the end of a string, what is the smallest value d can have before the string breaks
Potassium hydroxide is used to precipitate each of the cations from their respective solution. Determine the minimum concentration of KOH required for precipitation to begin in each case. A - 1.4*10^-2 M CaCl2 B - 2.8*10^-3 M Fe(NO3)2 C - 1.6*10^-
A stunt man drives a car at a speed of 20 m/s off a 24-m-high cliff. The road leading to the cliff is inclined upward at an angle of 20? How far from the base of the cliff does the car land
Write a function userPlay(marbles) that asks the user for the number of marbles that he or she would like to take and returns that number. The function should keep asking the user for the number of marbles if he or she takes more than half of the
A boy throws up a ball 15m/s, how high will the ball go and what is the duration (total time) in the air from throw to catch
Consider a solution that is 1.1*10^-2 M in Ba2+ and 2.0*10^-2 M in Ca2+. A - If sodium sulfate is used to selectively precipitate one of the cations while leaving the other cation in solution, which cation will precipitate first? Ba2+ precipitates
What are some recent examples of effective lobbying, electioneering, building coalitions, grassroots pressure, and litigation.
An experimental measurement has a result 7.95 +- 0.01, and a predicted value of 8.00. What is the percent uncertainty in the measurement
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