Arrhenius Acids and Bases - Video Tutorials & Practice Problems
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concept
Arrhenius Acids vs Bases
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Now, the general definition of acids and bases was proposed by the Swedish chemist as VTE AUS in the 18 hundreds. According to him, uh Rous acid was a compound that produces H plus ions when dissolved in water. Here, we have a prime example of hydro chromic acid. Hydroponic acid exists in an aqueous solution, meaning it's dissolved in water. When it's dissolved in water, it produces H plus ion plus br minus ion. The fact that we create H plus is why hydroponic acid itself is an IOUs acid. Now, with an aous acid, we have an IOUs base. An IOUs base is a compound that produces oh minus ions when dissolved in water. Here we have potassium hydroxide. When it's placed in water, it dissolves into K positive. So potassium ion plus the hydroxide ion because the hydroxide ion is produced. That's what makes potassium hydroxide an IOUs base. Now, this is a quick and easy way to understand acids, but it does have its own limitations. We're going to say here, the IOUs definition of acids and bases is limited to aqueous solutions. Now, it's hard to believe but not all acids and bases reactions happen within aqueous solutions. And for those, these definitions would not fit. So, although the erroneous definition of acids and bases is the first type of definitions people re rely on or recall. It is not the most inclusive in terms of all types of acids and bases. OK? But now that we've talked about this, let's move on to the next video where we take a look at an example problem.
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example
Arrhenius Acids and Bases Example
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54s
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Write an association equation showing how nitric acid and aluminum hydroxide act as aous acid and base respectively. Right. So, for nitric acid, we have hno three aqueous. Since it's being dissolved in water, when it's dissolved in water, it's going to produce here an H plus ion plus your nitrate ion. The fact that we're making an H plus ion is why it is an acid aous acid. And then we have aluminum hydroxide with aluminum hydroxide. It would dissolve into the aluminum ion aqueous plus, we have three hydroxide ions being produced. So this would show how aluminum hydroxide represents a aous base.
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Problem
Problem
Out of the following compounds, which can only be an Arrhenius acid?
a) NaCl
b) Sr(OH)2
c) H2O
d) CH3COOH
e) NH3
A
NaCl
B
Sr(OH)2
C
H2O
D
CH3COOH
E
NH3
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Problem
Problem
Which of the following is an Arrhenius base?
a) Mg(OH)2
b) BaO
c) CH3NH2
d) NH4+
e) H2SO4
A
Mg(OH)2
B
BaO
C
CH3NH2
D
NH4+
E
H2SO4
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