The low-resolution mass spectrum of an unknown analgesic x had a molecular ion of 151. possible molecular formulas include c7h5no3, c8h9no2, and c10h17n. high-resolution mass spectrometry gave an exact mass of 151.02695. what is the molecular formula of x?

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explanation:

covalent bonds

consist of pairs of electrons shared by two atoms, and bind the atoms to fixed orientation and requre high energies to break them

ionic bonds

when two atoms differ considerably in their electronegativity, then one of the atoms will lose its electron to the other atom. this results in a positively charged ion(cation) and a negatively charged ion (anion)

i do not get it   at all

answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;