Chapter 1: Q.1-1-24a (page 27)
What are likely formulas for the following molecules?
(a) NH?OH (b)AlCl? (c) CF2Cl?(d)CHO?
(a)
Short Answer
Answer
The chemical formula is NH2OH
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Chapter 1: Q.1-1-24a (page 27)
What are likely formulas for the following molecules?
(a) NH?OH (b)AlCl? (c) CF2Cl?(d)CHO?
(a)
Answer
The chemical formula is NH2OH
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A carbanion is a species that contains a negatively charged, trivalent carbon.

(a) What is the electronic relationship between a carbanion and a trivalent nitrogen compound such as NH3?
(b) How many valence electrons does the negatively charged carbon atom have?
(c) What hybridization do you expect this carbon atom to have?
(d) What geometry is the carbanion likely to have?
Write line-bond structures for the following substances, showing all nonbonding electrons:
(a) CHCl3, chloroform (b) H2S, hydrogen sulfide (c) CH3NH2, methylamine (d) CH3Li, methyllithium
Oxaloacetic acid, an important intermediate in food metabolism, has the formulaand contains threebonds and twobonds. Propose two possible structures.
Complete the electron-dot structure of caffeine, showing all lone-pair electrons, and identify the hybridization of the indicated atoms.

Convert the following molecular formulas into line-bond structures that are consistent with valence rules:
(a) (b)
(c) (2 possibilities)(d) (2 possibilities)
(e ) (3 possibilities) (f)(4 possibilities)
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