Identify each substance as an acid or a base and

garnentas3m

garnentas3m

Answered question

2021-12-15

Identify each substance as an acid or a base and write a chemical equation showing how it is an acid or a base in aqueous solution according to the Arrhenius definition. 
1. NaOH(aq) 
2. H2SO4(aq)
3. HBr(aq) 
4. Sr(OH)2(aq)

Answer & Explanation

Mary Herrera

Mary Herrera

Beginner2021-12-16Added 37 answers

Part 1: NaOH(aq)Na+(aq)+OH(aq) 
NaOH is an Arrhenius base because it produces OHions in an aqueous solution. For this ionization reaction, provide an equation.
 PART 2: H2SO4(aq)2H+(aq)+SO42(aq) 
H2SO4 is an Arrhenius acid because it produces H+ions in an aqueous solution. For this ionization reaction, provide an equation.
 PART 3: HBr(aq)H+(aq)+Br(aq) 
HBr is an Arrhenius acid because it produces H+ions in an aquation for this ionization reaction. 
PART 4: 
Sr(OH)2(aq)Sr2+(aq)+2OH(aq) 
Sr(OH)2 is an Arrhenius base because it produces OH ions in an aqueous solution. For this ionization reaction, provide an equation.

MoxboasteBots5h

MoxboasteBots5h

Beginner2021-12-17Added 35 answers

Result:
(1) Base
(2) Acid
(3) Acid
(4) Base
Solution:
According to the Arrhenius acid-base theory:
- An acid is a substance that releases H+ in aqueous solution.
- A base is a substance that releases OH in aqueous solution.
(1) NaOH is a base according to the following equation:
NaOH(aq)Na+(aq)+OH(aq)
(2) H2SO4 the following equation classifies this as an acid:
H2SO4(aq)2H+(aq)+SO42(aq)
(3) HBr the following equation classifies this as an acid:
HBr(aq)H+(aq)+Br(aq)
(4) Sr(OH)2 according to the following equation, is a base:
Sr(OH)2(aq)sSr2+(aq)+2OH(aq)

2021-12-27

Step 1
Arrhenius theory of acids and based
The Arrhenius theory of acids and bases tells that if a compound generates H+ ions in aqueous solution then it is identifies as acid whereas if it generates OH ion in aqueous solution then it is identified as a base.
Step 2
1. In water, NaOH dissociate into Na+ and OH ions. Since NaOH(aq) is identified as Arrhenius base.
NaOH(aq)Na+(aq)+OH(aq)
Step 3
2. In water, H2SO4 dissociate into H+ and SO42 ions. Since H2SO4 generates H+ ion into the aqueous solution therefore, H2SO4(aq) is identified as Arrhenius acid.
H2SO4(aq)2H+(aq)+SO42(aq)
Step 4
3. In water, HBr dissociate into H+ and Br ions. Since HBr generates H+ ion into the aqueous solution therefore, HBr(aq) is identified as Arrhenius acid.
HBr(aq)H+(aq)+Br(aq)
Step 5
4. In water, Sr(OH)2 dissociate into Sr2+ and OH ions. Since Sr(OH)2 generates OH ion into the aqueous solution therefore, Sr(OH)2(aq) is identified as Arrhenius base.
Sr(OH)2(aq)Sr2+(aq)+2OH(aq)

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