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Nikitich [7]
3 years ago
10

Which of the following describes a Brønsted-Lowry base?

Chemistry
2 answers:
Alina [70]3 years ago
8 0
Anwer: the first option, a hydrogen ion acceptor.

The acid-base model of Bronsted-Lowry is focused on hydrogen ion. An acid is a donor of hydrogen ions and a base is a receptor of hydrogen ions.
jeka57 [31]3 years ago
4 0

\boxed{{\text{A hydrogen ion accept or}}} describes a Bronsted-Lowry base.

Further Explanation:

Different theories have definitions of acids and bases. These theories are as follows:

1. Arrhenius theory: According to this theory, acid produces hydrogen or hydronium ions in a solution, while the base produces hydroxide ions in a solution. HCl, {\text{HN}}{{\text{O}}_3} and  {{\text{H}}_2}{\text{S}}{{\text{O}}_4} are Arrhenius acids while NaOH and KOH are the examples of Arrhenius bases.

2. Bronsted-Lowry theory: This theory defines acid as the proton or hydrogen ion donor and base as the proton or hydrogen ion acceptor. {{\text{H}}_2}{\text{O}} acts as Bronsted acid while {\text{N}}{{\text{H}}_3} is a Bronsted base.

3. Lewis theory: According to this theory, an acid accepts a pair of electrons from electron-rich species while a base donates electrons to electron-deficient species in the reaction. Examples of Lewis acids are {\text{B}}{{\text{F}}_3}, {\text{S}}{{\text{O}}_3} while {{\text{H}}_2}{\text{O}} and ROH are the examples of Lewis base.

A hydrogen ion acceptor

According to Bronsted-Lowry theory, Bronsted-Lowry base is the species that accepts protons or hydrogen ions. So this is incorrect.

An electron pair donor

A compound that donates an electron pair act as Lewis base, not Bronsted-Lowry base. So this is incorrect.

An electron pair acceptor

A compound that accepts an electron pair act as Lewis acid, not Bronsted-Lowry base. So this is incorrect.

A hydrogen ion donor

According to Bronsted-Lowry theory, the species that donates protons or hydrogen ions is known as Bronsted-Lowry acid, not base. So this is incorrect

Learn more:

1. The reason for the acidity of water brainly.com/question/1550328

2. Reason for the acidic and basic nature of amino acid. brainly.com/question/5050077

Answer details:

Grade: High School

Subject: Chemistry

Chapter: Acid, base and salts

Keywords: acid, base, electrons, protons, Arrhenius theory, Lewis theory, Bronsted-Lowry theory, hydrogen, hydronium ion, hydroxide ion, accept, donate, hydrogen ion acceptor, hydrogen ion donor, electron pair donor, electron pair acceptor.

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Answer:

18.73× 10²³ formula units

Explanation:

Given data:

Number of moles of Ca(NO₃)₂ = 3.11 mol

Number of formula units = ?

Solution:

Avogadro number:  

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For example,

18 g of water = 1 mole = 6.022 × 10²³ molecules of water

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Answer:

Solution A that will form a precipitate with Ksp = 2.3 x 10−4

Explanation:

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Where S = Solubility(mole/lit) and Ksp = Solubility product

⇒ Ksp = (3S)³ x (S)

⇒ 27S⁴ = 2.3x10−4

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Concentration of Li₃PO₄ precipitate = 0.05

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0.500 lit of a 0.3 molar LiNO₃ contains 0.5 x 0.3 = 0.15 mole

0.4 lit of a 0.2 molar Na₃PO₄ contains = 3 x 0.4 x 0.2 = 0.24 mole

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(Mole/Stoichiometry)    \frac{0.15}{3}                \frac{0.24}{1}

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Since from (Mole/Stoichiometry) ratio we can conclude that LiNO₃ is limiting reagent.

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We are required to determine the new volume;

From Charles's law;

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