Final answer:
The value of x2i can be found by substituting the given values of x2m and x2m+1 into the equations.
Step-by-step explanation:
The question is asking for the value of x2i, given the results in (b) and (d). Let's break down the given information:
(b) x2m = -x2m-1, 43
(d) x2m+1 = b - x2m, 45
We need to find the value of x2i using these equations. Since we are given the values of x2m for (b) and x2m+1 for (d), we can substitute these values into the equations to solve for x2i. The final concentration of x cannot be negative, so we can discount the second numerical answer as impossible. Therefore, x = 0.0216.