Consider the combination reaction of samarium metal and oxygen gas. If you start with 33.7 moles of samarium metal, how many moles of oxygen gas would be required to react completely with all of the samarium metal? For this reaction, samarium has a +3 oxidation state within the samarium/oxygen compound.
Answers
Answer:
25.275 moles of oxygen gas will be required to completely react with all the samarium metal.
Explanation:
Number of moles samarium metal = 33.7 moles
According to reaction, 4 moles of samarium reacts with 3 moles of oxygen gas.
Then 33.7 moles of samarium will react with:
of oxygen gas.
25.275 moles of oxygen gas will be required to completely react with all the samarium metal.
Answer:
Moles of oxygen gas required to react completely with 33.7 moles of samarium metal is .
Explanation:
A chemical equation in which the number of atoms of each element is the same on the reactant and product side is called a balanced chemical equation.
The balanced chemical equation can be used to determine the stoichiometric ratio between the reactant and the product. The stoichiometric ratio thus enables us to calculate:
1. Amount of one reactant required to react completely with the other reactant.
2. Amount of the product that can be produced from the given amount of the reactant.
Step 1: Write the chemical equation for the reaction between samarium metal and oxygen gas.
The chemical formula for oxygen gas is .
Samarium has +3 oxidation state within the samarium/oxygen compound. So, the chemical formula of the samarium oxygen compound is .
The chemical equation is as follows:
Step 2: Balance the chemical equation for the reaction between oxygen and samarium metal.
The number of oxygen atoms in the product side is 3 and in the reactant side is 2. Put coefficient 2 in front of and 3 in front of
to balance the oxygen atoms.
The number of samarium atoms in the product side is 4 and in the reactant side is 1. Put coefficient 4 in front of Sm in the reactant side.
Step 3: Determine the stoichiometric ratio between samarium and oxygen from the above balanced chemical equation.
According to the balanced chemical equation, we can see that the stoichiometric ratio between samarium and oxygen is 4:3.
Step 4: Use unitary method and calculate the moles of oxygen required to completely react with the given moles of samarium metal as follows:
...... (1)
Step 5: Substitute 33.7 mol for moles of Sm in equation (1).
Note:
Do not forgot to balance the reaction. The reaction must be balanced in order to calculate the amount (mol) of oxygen required to completely react with the given amount of samarium.
Learn more:
1. Balanced chemical equation brainly.com/question/1405182
2. Learn more about how to calculate moles of the base in given volume brainly.com/question/4283309
Answer details:
Grade: Senior School
Subject: Chemistry
Chapter: Some basic concept of chemistry
Keywords: samarium, oxygen gas, samarium/oxygen compound, 33.7 moles, 25.3 mol, balanced equation, stoichiometric ratio, coefficient, balance, moles, completely react.
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A. The more electronegative atom will form the positive pole of a
polar bond.
B. The more electronegative atom will form a nonpolar end of the
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Answers
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What is electronegativity?
Electronegativity is a charge that shows the ability of an element to gain electron pairs with other elements during bonding. Electronegativity is altered by the distance between the electron and the nuclei and the atomic number of the element.
Polarity is the state of the atomic body in which it has placed charges in an opposite way to the other atoms so that they can join together.
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A P E X
B) theoretical yield
C) percent yield
Answers
Answer:
A) actual yield
Explanation:
Theoretical yield is the amount of product expected based on the stoichiomety.
Percent yield is the actual yield over the theoretical yield.
Answers
Explanation:
Acids are the species which furnish protons (hydrogen ions) when dissolved in the water.
Bases are the species which furnish hydroxide ions when dissolved in the water.
Oxoacid is the acid which contains with at least one hydrogen atom which is bonded to the oxygen atom in the molecule which can dissociate in the solution to give proton and the corresponding anion.
Oxoanion is the anion which is derived from oxoacid by the loss of hydrogen atom which is bounded to the oxygen.
A hydrate is the specie which contains water molecule or it's constituents in its solid structure.
b) All bases
c) all solvents
d) nonpolar solvents
Answers
Answer:
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