Use the same symbols as in Question 61 for the box below.
(a) Fill in a similar box (representing one liter of the same solution) after 2 mol of have been added. Indicate whether the resulting solution is an acid, base, or buffer.
(b) Follow the directions of part (a) for the resulting solution after 2 mol of have been added.
(c) Follow the directions of part (a) for the resulting solution after 5 mol of have been added.
(Hint: Write the equation for the reaction before you draw the results.)
Each symbol in the box below represents a mole of a component in one liter of a buffer solution; represents the anion
the weak acid
Water molecules and the few H+ and OH– ions from the dissociation of HX and X– are not shown. The box contains 10 mol of a weak acid,
in a liter of solution. Show what happens upon
(a) the addition of 2 mol of
(b) the addition of 5 mol of
(c) the addition of 10 mol of
(d) the addition of 12 mol of
Which addition (a)–(d) represents neutralization halfway to the equivalence point?
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