Which of the following is an Arrhenius base? a) Mg(OH) 2 b) BaO c) CH 3 NH 2 d) NH 4 + e) H 2 SO 4

Which of the following is an Arrhenius Base? Now up to this point we know that an Arrhenius Base will generate Oh- ions when dissolved in an aqueous solution. What you should have also noticed is at this point we are saying that Arrhenius bases take on the structure of metal hydroxides. So a metal connected to the hydroxide ion. Now we take a look here, the only one that fits that description is magnesium hydroxide. When it breaks up, it breaks up into the magnesium ion plus 2 hydroxide ions. The presence of those 2 Oh- in the very beginning is what makes it an Arrhenius base. Now, barium oxide is a strong base but it is not an Arrhenius base. Next one is Methylamine, it is a neutral amine it is a weak base. But again it is not an Arrhenius base. Ammonium ion is a positive amine. Remember positive amines are actually weak acids not even bases. And then finally sulfuric acid is a strong acid not a base. So out of all the options option A is the correct answer.

Which of the following is an Arrhenius base? a) Mg(OH) 2 b) BaO c) CH 3 NH 2 d) NH 4 + e) H 2 SO 4

Understand the definition of an Arrhenius base: An Arrhenius base is a substance that increases the concentration of hydroxide ions (OH - ) when dissolved in water.. Analyze each option to determine if it fits the definition of an Arrhenius base.. Option a) Mg(OH) 2 : When dissolved in water, it dissociates to produce Mg 2+ and 2 OH - ions, thus increasing the concentration of hydroxide ions.. Option b) BaO: Reacts with water to form Ba(OH) 2 , which then dissociates to produce Ba 2+ and 2 OH - ions, increasing the concentration of hydroxide ions.. Evaluate the remaining options: c) CH 3 NH 2 is a weak base but not an Arrhenius base, d) NH 4 + is an acid, and e) H 2 SO 4 is an Arrhenius acid, not a base.

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17. Acid and Base Equilibrium

Arrhenius Acids and Bases

General Chemistry

17. Acid and Base Equilibrium

Arrhenius Acids and Bases

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Multiple Choice

Which of the following is an Arrhenius base?
a) Mg(OH)₂
b) BaO
c) CH₃NH₂
d) NH₄⁺
e) H₂SO₄

Mg(OH)₂

BaO

CH₃NH₂

NH₄⁺

H₂SO₄

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Verified step by step guidance

Understand the definition of an Arrhenius base: An Arrhenius base is a substance that increases the concentration of hydroxide ions (OH^-) when dissolved in water.

Analyze each option to determine if it fits the definition of an Arrhenius base.

Option a) Mg(OH)₂: When dissolved in water, it dissociates to produce Mg²⁺ and 2 OH^- ions, thus increasing the concentration of hydroxide ions.

Option b) BaO: Reacts with water to form Ba(OH)₂, which then dissociates to produce Ba²⁺ and 2 OH^- ions, increasing the concentration of hydroxide ions.

Evaluate the remaining options: c) CH₃NH₂ is a weak base but not an Arrhenius base, d) NH₄⁺ is an acid, and e) H₂SO₄ is an Arrhenius acid, not a base.