An Arrhenius base produces hydroxide ions (–OH) when dissolved in water. A Brønsted-Lowry base can accept a proton (H+) from another substance. A Lewis base donates a pair of electrons to form a coordinate covalent bond.
An Arrhenius base is a substance that produces hydroxide ions (–OH) when dissolved in water. An example of an Arrhenius base is sodium hydroxide (NaOH), which dissociates in water to form Na+ and OH– ions.
A Brønsted-Lowry base is a substance that can accept a proton (H+) from another substance. Ammonia (NH3) is an example of a Brønsted-Lowry base as it can accept a proton to form its conjugate acid, ammonium (NH4+).
A Lewis base is a substance that donates a pair of electrons to form a coordinate covalent bond. An example of a Lewis base is ammonia (NH3), which donates a pair of electrons to a Lewis acid to form a Lewis acid-base complex.
It is possible for a base to be of more than one type. For example, ammonia (NH3) is both a Brønsted-Lowry base and a Lewis base.
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An Arrhenius base is a substance that increases the concentration of OH- in water. A Brønsted-Lowry base is a substance that can accept a hydrogen ion. A Lewis base can donate an electron pair. It is possible for a base to be classified as more than one type.
An Arrhenius base is defined as a substance that increases the concentration of hydroxide ions (OH-) when dissolved in water. Sodium hydroxide (NaOH) is an example of an Arrhenius base as it dissociates in water to form a sodium ion (Na+) and a hydroxide ion (OH-).
A Brønsted-Lowry base, on the other hand, is any substance that can accept a proton (a hydrogen ion). Ammonia (NH3) is a common example of a Brønsted-Lowry base. When it reacts with water, it accepts a proton from a water molecule, forming its conjugate acid, ammonium (NH4+).
Last but not least, a Lewis base is a substance that can donate an electron pair. For example, ammonia (NH3) can act as a Lewis base as it donates its lone pair of electrons to form a coordinate covalent bond.
Yes, it is possible for a base to be categorized as both an Arrhenius, Brønsted-Lowry, and Lewis base - water (H2O) is one such example.
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Answer: The pH of the solution is 13.
Explanation:
pOH is defined as the negative logarithm of hydroxide ion concentration present in the solution.
We are given:
Concentration of (Conversion factor: )
1 mole of calcium hydroxide produces 1 mole of calcium ions and 2 moles of hydroxide ions
Concentration of
Putting values in above equation, we get:
We know:
Hence, the pH of the solution is 13.
b. because they both start and end with diatomic (two-atomed) molecules
c. because they both start and end with the same types of particles
d. because they both start and end with two sets of particles eliminate
Why does the chemical reaction seen here obey the law of conservation of matter?
Answer:
Explanation
NaOH + HCl -----> NaCl + H2O
A Energy to break bonds is more than energy release to form bonds
B Energy to break bonds is less than energy release to form bonds
Which type of reaction is represented by B?
Endothermic reaction
Exothermic reaction
Reaction between liquids
Reaction between solids
Answer:
Reaction B is exothermic
Explanation:
From the context of thermodynamics, chemical reactions can be broadly classified as endothermic and exothermic reactions.
Endothermic reactions involve absorption of energy and show a positive value for the reaction enthalpy i.e. ΔH is positive. In contrast, exothermic reactions are accompanied by the release of energy and show a negative value for the enthalpy change i.e. ΔH is negative.
In a given chemical reaction energy is required to break bonds and it is released during the formation of new bonds.
The Reaction B is such that, the energy required to break bonds is less than energy released during formation bonds. Therefore, since there is a net release of energy, the reaction is exothermic.
Exothermic Reactions