CH-1339
Chromatography and Rf values
Chemistry · Secondary 4 · Medium · Chromatography and Rf values
A gas sample is analysed by gas chromatography. Compound X has a retention time of 1.8 min and compound Y has a retention time of 3.6 min under the same conditions. Which statement about X and Y is most likely correct?
- X has a lower relative molecular mass than Y and diffuses faster.
- X has a higher relative molecular mass than Y and diffuses faster.
- Y has a lower relative molecular mass than X and diffuses faster.
- Y and X have the same relative molecular mass but different diffusion rates.
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