Final answer:
The values of x to express the range of hydrogen ion concentration in solutions are 0 for highly acidic to 14 for highly basic solutions, relating to a pH scale where 7 is neutral.
Step-by-step explanation:
The student has asked about the whole-number values of x used in the expression 1.0×10-xM to represent the range of hydrogen ion concentration in a solution.
In Chemistry, we often use this expression to calculate the pH level of a solution, which is critical for understanding its acidity or basicity.
Since pure water has a hydrogen ion concentration of 1.0×10-7M, giving it a pH of 7 (neutral), we use 1 as the lower value to represent more acidic solutions and 14 as the upper value for more basic solutions.
Therefore, the correct answer is that the two whole-number values of x should be 0 and 14, to account for the range of hydrogen ion concentration from highly acidic to highly basic solutions, respectively.