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What two whole-number values of x should be used in 1.0×10-xM to express the range of hydrogen ion concentration?

1) 1 and 0
2) 2 and 1
3) 12 and 13
4) 13 and 14

User Melab
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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.

User Resolution
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