Answer:
Follows are the solution to this question:
Explanation:
Please find the complete question in the attachment file.
In option a)
In the periodic group of main group component to valence electronic structure (IIIA group) and Aluminum (Al). The monatomic ion forms a load of (+3)
In option b)
The Chlorine within the periodic group (VIIA group) is the main group element for valence electron configuration (Cl). It constitutes a monatomic ion with a load of (-1).
Answer:
The amount of heat released by the combustion of 2 moles of methane = 1605.1 kJ
Option 3 is correct.
ΔH°(combustion of 2 moles of methane)
= -1,605.1 kJ
Explanation:
The balanced equation for the combustion of methane is presented as
CH₄ + 2O₂ → CO₂ + 2H₂O
The heat of formation for the reactants and products are
CH₄ (g): ΔHf = –74.6 kJ/mol;
CO₂ (g): ΔHf = –393.5 kJ/mol;
and H₂O(g): ΔHf = –241.82 kJ/mol.
ΔHf for O₂ = 0 kJ/mol
ΔH°rxn for the combustion of methane is given as
ΔH°rxn = ΣnH°(products) - ΣnH°(reactants)
ΣnH°(products) = (1×-393.5) + (2×-241.82)
= -877.14 kJ/mol
ΣnH°(reactants) = (1×-74.6) + (2×0)
= -74.6 kJ/mol
ΔH°rxn = -877.14 - (-74.6) = -802.54 kJ/mol
For 2 moles of methane, the heat of combustion = 2 moles × -802.54 kJ/mol
= -1,605.08 kJ = -1,605.1 kJ
Hope this Helps!!!
A reagent is a compound that is used for the detection of the absence or presence of another substance.
<h3>What are reagents?</h3>
Your information is incomplete as the available reagents aren't given. Therefore, an overview will be given.
Reagents are the integral part of a chemical reaction as they facilitate a reaction. A reagent is usually used tests.
Some typical examples of reagents include Tollens reagent, Fehling's reagent, Million's reagent, etc.
Learn more about reagents on:
brainly.com/question/5601219
62.3018 g/mol is the molar mass
Answer:
is the major step in forming acid chloride from carboxylic acid and thionyl chloride
Explanation:
- In the first step, -OH group in carboxylic acid gives nucleophilic substitution reaction at S center in thionyl chloride and substitutes -Cl atom
- In the second step, deprotonation takes place by chloride ion.
- In the third step, an intramolecular nucleophilic substitution reaction () takes place where bond electrons rearranges to produce , HCl and thionyl chloride.
- This rearrangement is highly favorable due to formation of gaseous species
- Reaction mechanism has been shown below.