Posted by **Jenn** on Tuesday, October 28, 2008 at 1:11am.

This is for organic chem lab.

I don't understand how to calculate the relative Rf values by setting ibuprofen to 1.00. For example, my Rf value for aspirin is 0.046, so how do I calculate the Rf relative to ibuprofen (1.00)?

My experimental data for ibuprofen is 0.55 if that helps.

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