The oxygen in water is primarily (99.8%) 16O, but water enriched with the heavy isotope
Chapter 19, Problem 19(choose chapter or problem)
The oxygen in water is primarily (99.8%) \({ }^{16} \mathrm{O}\), but water enriched with the heavy isotope \({ }^{18} \mathrm{O}\) is also available. When an aldehyde or ketone is dissolved in \({ }^{18} \mathrm{O}-\text { enriched }\) water, the isotopic label becomes incorporated into the carbonyl group. Explain.
\(\mathrm{R}_{2} \mathrm{C}=\mathrm{O}+\mathrm{H}_{2} \mathrm{O} \rightleftarrows \mathrm{R}_{2} \mathrm{C}=\mathrm{O}+\mathrm{H}_{2} \mathrm{O} \quad \text { where } \mathrm{O}={ }^{18} \mathrm{O}\)
Equation Transcription:
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Text Transcription:
16^O
18^O
18^O-enriched
R_2C=O+H_2O\rightleftarrowsR_2C=O+H_2O where O= 18^O
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