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"the strontium ion concentration is about 12 ppm" vs "the strontium ion concentration is about 0.6 to 12 ppm"

The two phrases are not directly comparable as they convey different information. The first phrase provides a range of concentrations (0.6 to 12 ppm) while the second phrase specifies a single concentration (12 ppm). Depending on the context and the level of precision required, either of the phrases could be correct.

Last Updated: March 31, 2024

the strontium ion concentration is about 12 ppm

This phrase is correct and commonly used when referring to a specific concentration of an ion in a solution.

This phrase is used to specify a single concentration value for the strontium ion in a solution. It does not provide a range of values.

the strontium ion concentration is about 0.6 to 12 ppm

This phrase is correct and commonly used in scientific contexts to indicate a range of concentrations.

This phrase is used when referring to a range of values for the concentration of a specific ion in a solution. It provides a lower and upper limit for the concentration.

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