Chapter 11.1, Problem 11.2CE

Instantaneous rates for the reaction of hydroxide ion with Cv⁺ can be determined from the slope of the curve in Figure 11.3 at various concentrations. They are

1. (1) At 4.0 × 10⁻⁵ mol/L, rate = 12.3 × 10⁻⁷ mol L⁻¹ s⁻¹
2. (2) At 3.0 × 10⁻⁵ mol/L, rate = 9.25 × 10⁻⁷ mol L⁻¹ s⁻¹
3. (3) At 2.0 × 10⁻⁵ mol/L, rate = 6.16 × 10⁻⁷ mol L⁻¹ s⁻¹
4. (4) At 1.5 × 10⁻⁵ mol/L, rate = 4.60 × 10⁻⁷ mol L⁻¹ s⁻¹
5. (5) At 1.0 × 10⁻⁵ mol/L, rate = 3.09 × 10⁻⁷ mol L⁻¹ s⁻¹
   1. (a) What is the relationship between the rates in (1) and (3)? Between (2) and (4)? Between (3) and (5)?
   2. (b) What is the relationship between the concentrations in each of these cases?
   3. (c) Is the rate of the reaction proportional to the concentration of Cv⁺? Explain your answer.