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Usimov [2.4K]
3 years ago
9

An unknown solution has a pH of 2 . How would you classify this solution?

Chemistry
2 answers:
o-na [289]3 years ago
7 0

Answer is: B. acidic.

pH (potential of hydrogen)  is a numeric scale used to specify the acidity or basicity of an aqueous solution:

When pH is less than seven (pH<7), solution is acidic.

When is equal seven (pH = 7), solution is neutral.

When pH is greater than seven (pH > 7), solution is basic.

For example, hydrochloric acid( HCl) is acidic, it ionizes in water solution and gives the hydrogen cations and chloride anions (Cl⁻):

HCl(aq) → Cl⁻(aq) + H⁺(aq).


marin [14]3 years ago
7 0
B. ACIDIC :)  pH<7 is considered to be acidic
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Answer:

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Reduction potential of  Cu^{2+} to Cu=E^o_{1}=0.34 V

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Fe(s)\rightarrow Fe^{2+}(aq)+2e^-

Reduction potential of  Fe^{2+} to Fe=E^o_{2}=-0.44 V

To calculate the E^o_{cell} of the reaction, we use the equation:

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The standard cell potential of the reaction is 0.78 Volts.

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