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A 7.300 gram sample of aluminum was quantitatively combined with a sample of selenium to form a compound The compound weighed 39.35 grams What is the empirical formula for this compound?
Wiki User
∙ 12y ago
The answer is Al2Se3
... dont ask me why or how but thats what my online qiuz said was correct so thats the right answer!
Wiki User
∙ 12y ago
The molar mass of aluminum is 26.98 g/mol, and the molar mass of selenium is 78.96 g/mol. Using the given masses, we find that there are 0.270 moles of aluminum and 0.499 moles of selenium in the compound. Dividing by the smallest number of moles (0.270) gives us the empirical formula Al2Se3.
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Which could represent the empirical and the formula of a given compound?
The empirical formula is representative for the chemical composition of a compound; the structural formula is representative for the spatial structure of the compound.
How do you know if a formula is an empirical formula?
An empirical formula has no data about the structure of a compound.
Is aluminium oxide mixture element or compound?
Aluminium oxide is a compound, composed of the elements aluminium and oxygen.
What does an empirical formula show?
the empirical formula of a compound tells you the proportions of the elements in the compound. with that information you can make some inferences about the identity of the compound. for example a compound with an empirical formula CH4 tells us that for every carbon atom there are four hydrogen atoms. this means that the compound is methane because no other hydrocarbon can have these roportions (try drawing the lewis structure for C2H8, which doesnt exist. you cant!)
The formula of a compound with the smallest ratios is called?
The formula of a compound with the smallest ratios is called the empirical formula. It represents the simplest whole-number ratio of atoms in a compound.
What compound would it be if aluminum and calcium combined?
If aluminum and calcium were to combine, the resulting compound would likely be a binary ionic compound with the formula Al2Ca3. This compound would consist of aluminum ions (Al3+) and calcium ions (Ca2+) combined in a 2:3 ratio to achieve a neutral charge.
What is the correct formula when aluminum and nitrogen are combined?
The correct formula for the compound formed when aluminum and nitrogen are combined is AlN, which is known as aluminum nitride. Aluminum has a +3 charge, and nitrogen has a -3 charge, so they combine in a 1:1 ratio to form a neutral compound.
What compound is formed when aluminum nitrogen and oxygen are added together?
When aluminum, nitrogen, and oxygen are combined, the compound formed is aluminum nitride oxide (AlNO).
What do copper chloride and aluminum form when combined?
When copper chloride and aluminum are combined, they react to form aluminum chloride and copper metal. This is a displacement reaction where aluminum replaces copper in the chloride compound.
What is the name the elements combined in compound AI2O3?
Aluminum and oxygen. The first two letters in the compound are Al, not AI, so the compound aluminum chloride is written Al2O3. Al is the symbol for aluminum and O is the symbol for oxygen.
Which compounds are in aluminum?
Aluminum is a pure element, so it does not exist as a compound. In compounds, aluminum can be found combined with other elements, such as oxygen in aluminum oxide (Al2O3) or chlorine in aluminum chloride (AlCl3).
Is aluminum oxide an element?
No, aluminum oxide is not an element. Indeed, nothing called an "oxide" can be an element, as this term indicates that the substance is combined with oxygen and is therefore a compound, not an element.
What is the name of the compound Al C2H3O2 3?
The compound Al(C2H3O2)3 is called aluminum acetate. It is a salt formed by combining aluminum and acetate ions.
Which could represent the empirical and the formula of a given compound?
The empirical formula is representative for the chemical composition of a compound; the structural formula is representative for the spatial structure of the compound.
How do you know if a formula is an empirical formula?
An empirical formula has no data about the structure of a compound.
Write the correct formula for the ionic compound composed of aluminum and bromide?
The correct formula for the ionic compound composed of aluminum and bromide is AlBr3, which indicates that each aluminum cation Al has a 3+ charge and each bromide anion Br has a 1- charge.
The lowest whole number ratio of the elements in a compound is called the?
The lowest whole number ratio of elements in a compound is called the empirical formula. This formula shows the simplest whole-number ratio of atoms in a compound.
