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Hydrogen-Ion Concentration and pH
13. Calculate the pH of a solution made by diluting 50.0 ml of a HNO 3 solution
(56.0% by weight, and density = 1.350 g/ml) to 2.75 liters.
14. The following volumes of 0.1000 M HC1 are added from a buret to a flask that
initially contains 50.0 ml of 0.1000 M NaOH solution:
(a) 0.00 ml
(f) 49.9 ml
(b) 10.0 ml
(g) 50.0 ml
(c) 25.0 ml
(h) 50.1 ml
(d) 45.0 ml
(i) 51.0 ml
(e) 49.0 ml
(j) 55.0 ml
Calculate the pH of the solution after each addition of HC1, and plot pH on the
y axis versus volume of HC1 on the x axis. This graph is called a titration
curve.