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Rank the following substances in order of [H3O+]. Assume each has a concentration of 0.200 M. KOH:  [a] NH4Br:  [b] HNO3:  [c] C5H5N:  [d] NaCl: [e]

The pH of two separate solutions, 1.0 M HNO3 and 1.0 M HC2H3O2, are measured. Which statement is true?

Equal volumes of 0.50 M HBr and 0.5 M NH3 are mixed together. The resulting solution can be best described as [desc]. Why? [why]

Which sets of units could represent the units on a second order rate constant?

Using provided data, determine

The reaction shown is at equilibrium. If a student adds more X to the system, what happens immediately (at that instant) to Q and K? X + Y

Now that you have completed the “exam” you must erase your whiteboard.  Do this now.  Make sure the camera captures your blank whiteboard.  Once you have completed this task, select “true” below and submit your exam.

When equal volumes (200.0 mL of each) of the solution pairs shown are combined, which produces a solution with the largest buffer capacity? [largest] Why? [why]

Which of the following is not a characteristic of nervous tissue?

Consider the following balanced chemical equation: 2 H2O(g) + 2 SO2(g)