What best explains the type of energy present in the vibrating atoms of a substance
2 answers:
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Answer:
pH = 2.059
Explanation:
At the Cathode:
The reduction reaction is:
At the anode:
At oxidation reaction is:
The overall equation for the reaction is:
The overall cell potential is:
Using the formula for the Nernst equation:
where;
E = 0.66
(Zn^2+)=0.22 M
Then
3.4 = log ( 0.1914) - 2 log [H⁺]
3.4 = -0.7180 - 2 log [H⁺]
3.4 + 0.7180 = - 2 log [H⁺]
4.118 = - 2 log [H⁺]
pH = log [H⁺] = 4.118/2
pH = 2.059
Answer:
29.2 L
Explanation:
Given data
- Moles (n): 1 mol
- Pressure (P): 0.824 atm
- Temperature (T): 293 K
We can find the volume of the gas (V) of the using the ideal gas equation.
P × V = n × R × T
V = n × R × T / P
V = 1 mol × (0.0821 atm.L/mol.K) × 293 K / 0.824 atm
V = 29.2 L