The question is "How does the absorption and release of energy affect temperature change during a chemical reaction?" I need to
1 answer:
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The empirical formula for the given compound has been . Thus, option C is correct.
The empirical formula has been the whole unit ratio of the elements in the formula unit.
<h3>Computation for the Empirical formula</h3>The given mass of Sulfur has been, 50.05 g
The given mass of oxygen has been 49.95 g.
The moles of elements in the sample has been given by:
- Moles of Sulfur:
The moles of sulfur in the unit has been 1.56 mol.
- Moles of Oxygen:
The moles of oxygen in the unit has been 3.12 mol.
The empirical formula unit has been given as:
Thus, the empirical formula for the given compound has been . Thus, option C is correct.
Learn more about empirical formula, here:
Answer:
El potencial celular estándar, is +0.46 V
Explanation:
Las reacciones de media célula son;
Media reacción del ánodo Cu²⁺ + 2e⁻ ↔ Cu, E ° = 0.34 V
Media reacción catódica 2Ag + 2e⁻ ⁻ 2Ag, E ° = 0.80 V
Sin embargo tenemos para hierro Fe²⁺ + 2e⁻ ↔ Fe, E ° -0.44 V
y Fe³⁺ + e⁻ ↔ Fe²⁺, E ° = 0.77 V
que es más alta que la del cobre presente, por lo tanto, el cobre se oxidará en el ánodo
Por lo tanto, en el ánodo, tendremos
Cu → Cu²⁺ + 2e⁻ (E ° = -0.34 V)
En el cátodo
2Ag + 2e⁻ → 2Ag (E ° = 0.80 V)
El potencial celular estándar, = +0.46 V