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Why is it that only molecular compounds can have a molecular formula?
Wiki User
∙ 14y ago
Because there are no compounds that aren't molecules/molecular. The question as posed is nonsense. Rephrase?
Wiki User
∙ 14y ago
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Explain why the percent composition of certain compounds are not sufficient to determine the compounds molecular formulas?
Because unlike the empirical formula, the molecular formula does not have to be the simplest ratio.If by chance you are given the percent composition of the elements in a substance, you could calculate the empirical formula and then the empirical formula's mass. However, the molecular formula equation is molecular formula= (empirical formula)n, where n is the mass of the molecular formula divided by the mass of the empirical formula. You would, therefore, need to know the mass belonging to the molecular formula, which you are not given.
Is C8H18O organic or inorganic?
Compounds having this molecular formula are organic compounds.
Why is the term molecular mass applied to water but the term formula mass applied to aluminum chloride?
molecular formula is referred to water because they are covalent compounds while formula mass for aluminum chloride because they are ionic compounds
Is Na Br a molecular formula or a formula unit?
NaBr would be a formula unit as all sodium (Na) compounds are ionic.
Which compounds have the same molecular formula but different structures?
isomers
What is more useful for determining a compounds identity Empirical formulaPercent compositionOR Molecular formula?
molecular formula
What is the term for compounds that have the same molecular formula but a different molecular shape?
Isomers.
Why ionic compounds do not posses molecular formula?
it is not a molecule
What is molecular formula for 'ammonia nitrogen'?
Ammonia and nitrogen are two distinct compounds, not a single compound that would have a molecular formula.
Two compounds that have the same molecular formula but different structural formulas are?
Two compounds that have the same molecular formula but different structural formulas are isomers of each other.
Which compound has the empirical formula ch2o?
CH2O is not only the empirical but also the molecular formula for formaldehye. It is also the empirical but not the molecular formula for hydroxyacetaldehyde, acetic acid, methyl formate, 1,3-dihydroxyacetone, and many other compounds.
Compounds with the same molecular formula but different structures?
isomers
Explain why the percent composition of certain compounds are not sufficient to determine the compounds molecular formulas?
Because unlike the empirical formula, the molecular formula does not have to be the simplest ratio.If by chance you are given the percent composition of the elements in a substance, you could calculate the empirical formula and then the empirical formula's mass. However, the molecular formula equation is molecular formula= (empirical formula)n, where n is the mass of the molecular formula divided by the mass of the empirical formula. You would, therefore, need to know the mass belonging to the molecular formula, which you are not given.
Do ionic compounds have molecular formula?
Sort of, though the term "chemical formula" is more accurate for describing compound molecular or otherwise.
Is C8H18O organic or inorganic?
Compounds having this molecular formula are organic compounds.
Why is the term molecular mass applied to water but the term formula mass applied to aluminum chloride?
molecular formula is referred to water because they are covalent compounds while formula mass for aluminum chloride because they are ionic compounds
What is the chemical formula of a molecular compound called?
Molecular compounds are formed between two ionic bonds
