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Explain this resonance and basicity problem? Why does the Guanidine top nitrogen have a negative dipole? Doesn't the resonance hybrid cause the bond to be less than 1 full bond so it causes it to be a positive dipole? Also doesn't the resonance in guanidine cause it to be a weaker base than ammonia?17. (5) Lets decide which is the stronger base ammonia or guanidine. Circle one answer each in H2N parts (a) (c) below. Guanidine (a) What is the charge on guanidines NH nitrogen atom in its resonance hybrid? neutral (b) Circle the correct statement concerning the relative electron density of the nitrogen atom in ammonia versus Ammonia more than guanidine About equal Ammonia le than guanidine (c) Circle the correct statement concerning the relative basicity of ammonia and guanidine: Ammonia is the stronger base Guanidine is the stronger base Basicity is about equal Page 3 score

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acce tane-e..。 nu MH in W N. versus the NHhz wtoyen rn. en in

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