Considering the given chemical reaction it should be explained that how O 18 isotope is used to prove that oxygen atom in H 2 O comes from methanol or from acetic acid. Concept introduction: Isotope: Two atoms are isotopes if they have equal number of protons but with different number of neutrons that is two atoms with same atom number but with different mass number are considered as isotopes. One of the important applications of isotope is that they are used in isotopic labelling that is they are used as tracers in order to analysis the compound and to find out from which reactant molecule it forms.

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Chapter 14, Problem 94SCQ

Interpretation Introduction

Interpretation: Considering the given chemical reaction it should be explained that how O18 isotope is used to prove that oxygen atom in H2O comes from methanol or from acetic acid.

Concept introduction:

Isotope: Two atoms are isotopes if they have equal number of protons but with different number of neutrons that is two atoms with same atom number but with different mass number are considered as isotopes.

One of the important applications of isotope is that they are used in isotopic labelling that is they are used as tracers in order to analysis the compound and to find out from which reactant molecule it forms.

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