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What is the empirical formula of a substance that consists of 3.704g aluminum and 3.295g oxygen?
Wiki User
∙ 10y ago
To find empirical formulas from mass data such as are presented in this question, first convert the masses given to gram atoms by dividing the stated mass for each element by the gram Atomic Mass of the element. For aluminum, 3.704/26.9815 is about 0.137279; for oxygen, 3.295/15.9994 is about 0.205945. Then divide the larger of these numbers of gram atoms by the smaller to produce a quotient of 1.500. The smallest integers that approximate this ratio are 3 and 2. Therefore, the empirical formula is Al2O3.
Wiki User
∙ 10y ago
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What is the empirical formula of a substance that consists of 5.687 g copper and 1.305 g oxygen?
This the cuprous oxide, CuO.
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.
What is the empirical formula of C10H4?
It is an empirical formula.
What is the substance that has formula mass of 133.5 amu?
Aluminum Chloride - Alcl3
What is the relationship between empirical formula and formula unit?
A formula unit is an empirical formula.
What is the empirical formula for aluminum sulfide (Al3+, S2-)?
Al2S3 is the empirical formula
What is the empirical formula of a substance that consists of 5.687 g copper and 1.305 g oxygen?
This the cuprous oxide, CuO.
What is empirical formula of aluminum oxide?
Al2O3.
What is the empirical formula for aluminum sulfate?
Al2(SO4)3
Can you determine the molecular formula of a substance from its percent composition?
Not completely. The empirical formula of a substance can be determined from its percent composition, but a determination of molecular weight is needed to decide which multiple of the empirical formula represents the molecular formula.
Can one substance have same empirical and molecular formula?
Yes it can be
What is the chemical formula for an aluminum can?
An aluminum can is made up of the pure substance, aluminum. This means that it has the chemical formula of Al. The surface of aluminum does oxidize, so it will have the formula Al2O3.
What other information is required to know whether a formula is both empirical and molecular?
We need to know the elements contained in this molecule and the percentages.
Do C6H12 and C6h14 have the same emoiricual formula?
No. The empirical formula of a substance is the formula in which each atomic symbol has the lowest possible subscript that gives the correct ratio between atoms for the compound as a whole. For C6H12, the empirical formula is CH2, but for C6H14, the empirical formula is C3H7.
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.
What is the empirical formula of C10H4?
It is an empirical formula.
What is the empirical formula of a substance that contains 0.117 of carbon 0.233 of hydrogen and 0.117 of oxygen?
Ch2o
