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Answered 2009-06-12 16:20:04

empirical formula

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What is the mass ratio of an element in a compound?

This is the percentage of the element in the compound.


What does a compound formula tell us about the compound?

If it is a molecular compound, the formula indicates the numbers of atoms of each element in one molecule of the compound. If it's an ionic compound, the formula unit indicates the lowest whole number ratio of ions in the compound.


The lowest whole number ratio of the elements in a compound is called the?

empirical formula


Lowest whole number ratio of ions in an ionic compound is a?

It is a formula unit.


Which of these is determined by an empirical formula?

the lowest whole number ratio of elements in a compound A+


Do the Empirical formula relates the mass of each element in a compound to the entire mass of the compound?

An empirical formula gives this information indirectly by specifying the ratios of numbers of atoms of each element in a compound to the total number of atoms in a compound. These ratios can then be mathematically converted into the mass ratios specified in the question by using the known atomic weights of each element present: The mass ratio of element "Q" to element "R" is equal to the number ratio multiplied by the ratio of the atomic weight of element Q to that of element R. For example, the number ratio of hydrogen to oxygen in water is 2, but the mass ratio is 2(1.008/15.999) = 0.1260.


The chemical formula for an ionic compound represents the?

The lowest whole number ratio of positive to negative ions in the compound.


What is a formula unit of an ionic compound?

A formula unit shows the lowest ratio of ions that combine to make this compound.


What is the lowest whole number of mass ratio of copper that combines with a given mass of chlorine?

The compound of copper and chlorine with the lowest atomic ratio of copper to chlorine is CuCl2.


What is a combination of element symbols that show the ratio of elements in a compound?

Subscript


How does one determine an empirical formula from a percent composiition?

Based on % composition, one can determine the moles of each element in, say, 100 grams of compound. Then, one can see the mole ratio of all the elements in the compound, and adjust them so as to obtain whole numbers in the lowest possible ratio. This is then the empirical formula.


What is the formula of imperical?

The simplest ratio of atoms of each element within a compound


Is carbon monoxide a compound mixture atom element or molecule?

its a compound. it consists of carbon and oxygen in a fixed ratio.


How is the ratio of components in a mixture different from the ratio of element in a compound?

The ratio in mixtures can be varied, within reason, with little impact on the properties of the mixture. The ratio in compounds is fixed.


Is copper chloride a element mixture or compound?

Copper chloride is a compound, with a fixed atomic ratio between copper and chlorine.


What does an empirical formula show?

An empirical formula shows the simplest ratio of atoms between it's element in a compound. It indirectly shows a mass ratio between the elements and compound.


How do you write the formula for an ionic compound?

Write the symbols (cation then anion)Write the combining capacity for each element over the symbolUse the 'cross over' method and reduce the numbers to the lowest ratio


What is the ratio of the elements that make carbon?

Carbon is a chemical element, not a compound.


What does the chemical formula for an ionic compound represent?

Usually the lowest whole number ratio of ions in the compound, called the empirical formula or the formula unit.


What is the lowest whole number ratio of ions in an ionic compound called?

an empirical formula For an ionic compound, the empirical formula is called a formula unit.


Is salt a molecular element or a molecular compound?

Salt is a molecular compound. It contains Na+ and Cl- ions in a 1:1 ratio.


What is an empircal formula?

The empirical formula of a chemica compound is the simplest positive integer ratio of atoms of each element present in a compound.


What is a combination of element symbols that shows the ratio of elements in a compound?

mass number over atomic number next to the element symbol


What is a percentage determined by the ratio of mass of each element to the total mass of the compound?

Percent By Mass!


Is sodium fluoride an element mixture or compound?

Sodium fluoride is a compound. It comprises of two elements- sodium and fluorine combined in a fixed ratio.


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