is pyridine a strong base?
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Pyridine is a weak base because it less likely to accept a proton from another molecule. ... Pyridine has nitrogen as centre which features a basic lone pair of electrons its Because of this lone pair pyridine is a base. As it is not included in the aromatic ring.
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The strong acid hydrogen chloride (HCl) is one example. If one of the ions is OH-, the solution is basic. An example of a strong base is sodium hydroxide (NaOH). There are other ions that make acidic and basic solutions, but we won't be talking about them here.
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The more stable the conjugate base, the stronger the acid. A very strong acid has a very weak conjugate base and a very weak acid has a very strong conjugate base.
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Ammonium hydroxide is a weak base because it does not dissociate completely into ions. To determine if a chemical compound is a base, look at the...
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1. All ionic compounds are strong electrolytes, because they mostly break up into ions as they dissolve in water. ... [Note: Mg(OH)2, an insoluble compound, is a strong base because it is an ionic compound and therefore a strong electrolyte.]
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Answer and Explanation: The compound Mg(OH)2 (magnesium hydroxide) is a weak base. Some bases are strong while the others are weak.
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A strong base is a base that ionises or dissociates almost 100% in water to form OH− ion. ... It dissociates in water to form sodium ion and hydroxide ion. A weak base is a base that ionises or dissociates only partially in water to form OH− ion. An example of it will be ammonia.
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Pyrrole is a much weaker base than pyridine (see above). This is because the lone pair on the N atom is already involved in the aromatic array of p electrons. Protonation results in loss of aromaticity and is therefore unfavourable.
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more stable base = stronger acid. These factors you are talking about are to check the stability of CONJUGATE base. The more stable the conjugate base is, the stronger the acid, and vice versa.
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Strong bases are capable of deprotonating weak acids; very strong bases can deprotonate very weakly acidic C–H groups in the absence of water. Sodium hydroxide pellets: Sodium hydroxide pellets, before being suspended in water to dissociate. Some common strong Arrhenius bases include: ... Barium hydroxide (Ba(OH)2)
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a) NaBr - neutral Na+ has no acidic or basic properties and since Br- is the conjugate base of a strong acid it is a nonbase. is the conjugate base of a weak acid it is a weak base. weak acid and since Cl- is the conjugate base of a strong acid it is a nonbase. the conjugate base of a weak acid it is a weak base.
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The use of conjugate acid-base pairs allows us to make a very simple statement about relative strengths of acids and bases. The stronger an acid, the weaker its conjugate base, and, conversely, the stronger a base, the weaker its conjugate acid. TABLE 11.13.
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Both N are slightly basic. Pyrimidine is less basic than pyridine because of the inductive, electron-withdrawing effect of the second N atom. The pKa of the conjugate acid of pyrimidine is 1.3. Note that pyrimidine is about six orders of magnitude less basic than imidazole.
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Acids and bases have various strengths, all depending on their pH . An extremely strong base would be more dangerous than a weak acid, and vice versa.
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No, methanol is not considered a strong base. ... Methanol lacks stabilizing effects, so although it can act as a base, it is fairly weak one. It is, however, a pretty decent nucleophile given its small size and lone pairs.
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Or how are you suppsed to know that NaSH is a stong nucleophile but a weak base? ... The base strength is related to the thermodynamic stability of the conjugate base.
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It is a moderately strong base. When treated with acid, it forms the toxic gas hydrogen cyanide: NaCN + H2SO4 → HCN + NaHSO.