I look for your answer 278.1 g/mol I hope this help
Answer:
ΔH°rxn = 54.08 kJ
Explanation:
Let's consider the following equations.
a) ClO(g) + O₃(g) ⇄ Cl(g) + 2 O₂(g) ΔH°rxn = –29.90 kJ
b) 2 O₃(g) ⇄ 3 O₂(g) ΔH°rxn = 24.18 kJ
We have to determine the value of heat of reaction for the following reaction: Cl(g) + O₃(g) ⇄ ClO(g) + O₂(g)
According to Hess's law, the enthalpy change in a chemical reaction is the same whether the reaction takes place in one or in several steps. That means that we can find the enthalpy of a reaction by adding the corresponding steps and adding their enthalpies. According to Lavoisier-Laplace's law, if we reverse a reaction, we also have to reverse the sign of its enthalpy.
Let's reverse equation a) and add it to equation b).
-a) Cl(g) + 2 O₂(g) ⇄ ClO(g) + O₃(g) ΔH°rxn = 29.90 kJ
b) 2 O₃(g) ⇄ 3 O₂(g) ΔH°rxn = 24.18 kJ
-------------------------------------------------------------------------------------------------
Cl(g) + 2 O₂(g) + 2 O₃(g) ⇄ ClO(g) + O₃(g) + 3 O₂(g)
Cl(g) + O₃(g) ⇄ ClO(g) +O₂(g)
ΔH°rxn = 29.90 kJ + 24.18 kJ = 54.08 kJ
Use the equation:
pOH= -log[OH]
Hope this helps!
the arrangement of the mineral's atoms
Explanation:
The arrangement of atoms in a mineral determines both the physical and chemical property of such a substance.
- Minerals are naturally formed inorganic chemical substances with a definite and ordered atomic arrangement. Most minerals are usually solid in nature.
- Minerals have an ordered atomic arrangement and this dictates its properties.
- For example, the luster minerals can be attributed to the faces of the ordered crystals that makes up the mineral.
- Rocks breaks in certain fashion due to the nature and the ordered structure of the atoms making up their minerals.
Learn more:
rocks an aggregate of minerals brainly.com/question/6568161
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