Answer:
The proton and electrons are equal,
15protons and 15electrons
Explanation:
An atom is the smallest electrical neutral particle of an element so it means that every atom have same number of protons and electrons.
Answer:
The answer to your question is 6 moles of oxygen
Explanation:
Data
methanol = CH₃OH
number of moles = 4
moles of oxygen = ?
Process
1.- Write and balance the chemical reaction
2CH₃OH + 3O₂ ⇒ 2CO₂ + 4H₂O
Reactants Elements Products
2 Carbon 2
8 Hydrogen 8
8 Oxygen 8
2.- Calculate the moles of oxygen
2 moles of methanol ----------------- 3 moles of oxygen
4 moles of methanol ------------------ x
x = (4 x 3) / 2
x = 12/2
x = 6
Answer:
A) E° = 4.40 V
B) ΔG° = -8.49 × 10⁵ J
Explanation:
Let's consider the following redox reaction.
2 Li(s) +Cl₂(g) → 2 Li⁺(aq) + 2 Cl⁻(aq)
We can write the corresponding half-reactions.
Cathode (reduction): Cl₂(g) + 2 e⁻ → 2 Cl⁻(aq) E°red = 1.36 V
Anode (oxidation): 2 Li(s) → 2 Li⁺(aq) + 2 e⁻ E°red = -3.04
<em>A) Calculate the cell potential of this reaction under standard reaction conditions.</em>
The standard cell potential (E°) is the difference between the reduction potential of the cathode and the reduction potential of the anode.
E° = E°red, cat - E°red, an = 1.36 V - (-3.04 V) 4.40 V
<em>B) Calculate the free energy ΔG° of the reaction.</em>
We can calculate Gibbs free energy (ΔG°) using the following expression.
ΔG° = -n.F.E°
where,
n are the moles of electrons transferred
F is Faraday's constant
ΔG° = - 2 mol × (96468 J/V.mol) × 4.40 V = -8.49 × 10⁵ J
It is more likely to be 9 as pH 8 and above are Alkali (Base) and alkali solutions don't tend to react with metals.
Hope this helps :) ~