The ratio of H⁺ ions to OH⁻ ions at a pH = 2 is 10¹⁰
<h3>Further explanation</h3>
Given
ph = 2
Required
The concentration of H⁺ and OH⁻ ions
Solution
- The concentration of H⁺ ions
pH=-log[H⁺]
2=-log[H⁺]
[H⁺]=10⁻²
- The concentration of OH⁻ ions
pH+pOH=14
pOH=14-2
pOH=12
pOH=-log[OH⁻]
12=-log[OH⁻]
[OH⁻]=10⁻¹²
- The ratio of H⁺ ions to OH⁻ ions at a pH = 2
Main Answer: The standard electrode potential of galvanic cell constructed from barium and manganese electrode is 4.097.
Explanation:
When the galvanic cell constructed between Manganese and Barium, the half reactions will be as follows:
Mn2+(aq) + 2e-⟶ Mn(s) E1 = −1.185
Ba2+(aq) + 2e-⟶ Ba(s) E2 = −2.912
By considering the above two reactions, the standard electrode potential can be calculated.
The galvanic cell standard electrode potential is given by E1 + E2 = 1.185 + 2.912 = 4.097 volts
What is standard electrode potential?
Standard electrode potential is defined as the measure of reducing power of any compound or element. Its units are volts.
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First part is polar, second part is non-polar. Use the saying "like dissolves like". Substances that are alike in polarity are more likely to dissolve one another.
c. condensation is your answer.
