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Who developed the law of definite composition?
The law of definite composition was developed by French chemist Joseph Proust in the late 18th century. He formulated this law based on his experiments with chemical compounds, which stated that a given compound always contains the same elements in fixed proportions by mass.
The first chemist to formally state the law of constant composition was?
Joseph Louis Proust.
How does the law of definite proportions explain the fact that although water and hydrogen peroxide consist of the same elements have different properties?
First find out what the law of definite proportions is. Then explain the fact that water and hydrogen peroxide consist of the same elements. Then find out if they have different or the same properties.
Does ohm's law also apply to the filament lamp?
No. For Ohm's Law to apply, the ratio of voltage to current must remain constant for variations in voltage. This simply doesn't happen with a tungsten filament. In fact, MOST materials don't obey Ohm's Law.
What law states that the total mass of the reactants always equals the total mass of the products?
The law of conservation of mass. We now know that technically it's not quite true, but it's so close that the difference cannot be detected on the most sensitive balances we have.
Is the law of definite composition the same as the law of definite proportion?
yes it is .. also called prousts law
What is the law that states that a chemical compound always contains the same elements in exactly the same proportions by w eight and mass?
The law you are referring to is the Law of Definite Proportions. This law states that a chemical compound always contains the same elements in the same proportions by mass, regardless of the source of the compound.
What is the chemical equation of the law of definite composition?
This law hasn't a chemical equation !
Does steam distillation obey Raoults law?
Yes, steam distillation follows Raoult's law, which states that the partial pressure of each component in a mixture is proportional to its mole fraction in the mixture and the vapor pressure of the pure component. This law is used to calculate the composition of the distillate obtained through steam distillation.
Is it true that a chemical has a definite composition?
Yes, after the Law of definite proportions; but now it is clear that this law is not applicable to all known chemical compounds.
What theory states that a given compound will always contain exactly the same proportion of elements by weight?
Law of definite proportion or law of definite composition.
How is the Law of definite composition and proportion relate to the empirical formula?
The Law of Definite Composition states that a compound will always have the same proportion of elements by mass. This relates to the empirical formula because the empirical formula gives the simplest whole number ratio of the elements in a compound, which reflects the fixed composition of elements as per the Law of Definite Composition.
Is the law of definite proportions says that the composition of a compound always the same?
always the same
What you mean by nonstoichiometry?
The chemical composition of nonstoichiometric compounds do not respect the law of definite proportions.
Explain how your class's results in this experiment support the law of definite composition?
The law of definite composition states that a compound will always have the same proportion of elements by mass regardless of the source or how it was prepared. In the experiment, if the class obtained consistent results in terms of the mass of elements present in the compound, it would support this law. This consistency would demonstrate that the compound was formed with a fixed ratio of elements, reinforcing the idea that compounds have a definite composition.
Is the law of definite composition applicable to compounds only?
This law is not valid for all chemical compounds (ex. nonstoichiometric compounds).
Does 50g of MgS yields 21.56 g Mg and 28.44 g S obey the law of definite proportions?
Yes, the reaction of 50 g of MgS yielding 21.56 g of Mg and 28.44 g of S obeys the law of definite proportions. This law states that a chemical compound always contains its component elements in fixed ratio by mass. In this case, the ratio of magnesium to sulfur is consistent, confirming that MgS has a definite composition regardless of the sample size.
