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What is the difference between stoichiometric and non stoichiometric solids?
Non-stoichiometric compounds are chemical compounds with an elemental composition that cannot be represented by a ratio of well-defined natural numbers.Stoichiometric compounds are compounds in which atoms are combined in exact whole-number ratios.
What are non stochiometric compounds?
A non stoichiometric compound is one where an exact integer ratio of atoms is not achieved. An example is FeO- all laboratory specimens are "iron deficient" with formals of about Fe0.8 O this is a feature of non -stoichiometric compounds their composition is variable within narrow limits- some of the iron is Fe3+, the crystal lattice has "defects" that accomodate them. (Pure FeO can be made but it is pyrophoric (may spontaneously in flame)
Is iron oxide a non stoichiometric compound?
Yes, iron oxide can exist as a non-stoichiometric compound. This means that the ratio of iron to oxygen atoms in the compound is not a whole number and can vary. Examples include magnetite (Fe3O4) and wüstite (FeO).
What is non stoichiometry?
Non-stoichiometry refers to the deviation from an exact ratio of atoms in a compound. This occurs when a compound does not have the expected ratio of elements due to defects or vacancies in the structure. Non-stoichiometric compounds can exhibit variable properties such as conductivity or color.
Examples of ionic and covalent compounds?
Ionic compounds: NaCl, KOH, CuSO4, etc. Any compound containing a metal and a non-metal. In ionic compounds, metals have positive ions (they lose electrons to the non metal) and non-metals have negative ions (as they gain electrons from the metal) Covalent compounds: CH4, BF3, NH3, all hydrocarbons/ all compounds containing only non-metals.
What are non-stoichiometric defects?
Non stoichiometric compounds do not match to law of definite proportions.
What is the difference between stoichiometric and non stoichiometric solids?
Non-stoichiometric compounds are chemical compounds with an elemental composition that cannot be represented by a ratio of well-defined natural numbers.Stoichiometric compounds are compounds in which atoms are combined in exact whole-number ratios.
What are non stochiometric compounds?
A non stoichiometric compound is one where an exact integer ratio of atoms is not achieved. An example is FeO- all laboratory specimens are "iron deficient" with formals of about Fe0.8 O this is a feature of non -stoichiometric compounds their composition is variable within narrow limits- some of the iron is Fe3+, the crystal lattice has "defects" that accomodate them. (Pure FeO can be made but it is pyrophoric (may spontaneously in flame)
What is an example of the law of definite proportion?
All stoichiometric compounds.
Is iron oxide a non stoichiometric compound?
Yes, iron oxide can exist as a non-stoichiometric compound. This means that the ratio of iron to oxygen atoms in the compound is not a whole number and can vary. Examples include magnetite (Fe3O4) and wüstite (FeO).
What is non stoichiometry?
Non-stoichiometry refers to the deviation from an exact ratio of atoms in a compound. This occurs when a compound does not have the expected ratio of elements due to defects or vacancies in the structure. Non-stoichiometric compounds can exhibit variable properties such as conductivity or color.
What is a berthollide?
A berthollide is any non-stoichiometric compound.
What is anhydrous copper sulphide?
The chemical formulas of copper sulfides are CuS and Cu2S. Copper sulfides are non-stoichiometric compounds. Anhydrous meaning is without water. Copper sulfides hasn't hydrates.
What is a mixture of metals or of a metal and non metal?
An alloy is a mixture of metals, while an intermetallic compound is a mixture of a metal and a non-metal. Alloys are typically formed by mixing two or more metals together, while intermetallic compounds are formed by combining a metal with a non-metal in a specific stoichiometric ratio.
Can a mixture be defined by chemical formula?
Not by a single one. You can have the individual compounds making up the mixture be present in a stoichiometric ratio, of course, though you don't have to.
Are non binary compounds and polyatomic compounds the same thing?
yes
Which compounds elute first in non polar gc column?
In a non-polar GC column, compounds with lower polarity elute first. Non-polar compounds are less attracted to the non-polar stationary phase of the column, so they move through the column faster than polar compounds.
