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Trisilylamine is a weaker base than trimethylamine because the silicon atoms in trisilylamine are less electronegative than the nitrogen atom in trimethylamine. This results in less efficient donation of lone pair electrons by silicon atoms. Additionally, the larger size of silicon atoms in trisilylamine leads to poorer overlap of orbitals with protons, weakening its basicity compared to nitrogen atoms.

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Q: Why is trisilylamine a weaker base as compared to trimethylamine?
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((CH3)3NH)Cl is a salt formed by the reaction of the base trimethylamine ((CH3)3NH) and hydrochloric acid (HCl). Trimethylamine is a weak base, so ((CH3)3NH)Cl would be considered acidic.


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Which substance has the weakest base baking soda or ammonia?

Baking soda (sodium bicarbonate) is weaker as a base compared to ammonia (NH3). Ammonia is a stronger base than baking soda because it is a more effective proton acceptor, meaning it can more readily accept and donate protons in a chemical reaction.


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The strength of a weak acid is inversely related to the strength of its conjugate base. If an acid is weak, its conjugate base will be stronger because the weaker the acid, the more easily it will give up its proton to form the conjugate base. Conversely, a stronger acid will have a weaker conjugate base.


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Dimethylamine is more basic than trimethylamine because in dimethylamine, the lone pair of electrons on the nitrogen atom is less sterically hindered compared to trimethylamine. This makes the lone pair more available for donation, leading to a stronger base.


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Is heat of neutralization same for every acid-base pair?

No, the heat of neutralization can vary for different acid-base pairs due to differences in the strength of the acids and bases involved. Stronger acids and bases typically release more heat during neutralization compared to weaker acids and bases.