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Dalton's theory of atoms said that the masses of elements in a compound are always?
equal
Who propose that the tatio of masses of elements in any given compound is always the same?
J. L. ProustJ. L. Proust
What two pieces of information are needed to determine the ratio of elements in a compound?
The chemical formula of the compound (e.g., H2O for water) and the molar masses of the elements present in the compound are needed to determine the ratio of elements. The molar masses are required to calculate the molar ratios of the elements in the compound.
Shows the ratio of elements in a compound?
The chemical formula of the compound shows the ratio of the atoms of elements in a compound. This must not be confused with the ratio of their masses.
What is meant by law of constant proportion and how is this law applied in experiment empirical formula of a compound?
The law of constant proportion states that a pure chemical compound always contains exactly the same proportion of elements by mass.This information, together with the atomic masses of the elements in the compound enable scientists to determine the formula of a compound.
How do you calculate the molar mass of a compound?
To calculate the molar mass of a compound, you add up the atomic masses of all the elements in the compound as indicated by its chemical formula. The atomic masses can be found on the periodic table.
What is the law of definite proportions?
A chemical compound always contains exactly the same proportion of elements by mass. ---------------------------------------------------------------------------------------------------- A law that states that a compound always contains the same elements in the same proportions. Source: e2020
State the law of definite proportions?
The law of definite proportions states that a compound always contains the same elements in the same proportion by mass, regardless of the source of the compound. This means that for a given compound, the ratio of the masses of the elements is always constant.
Are elements that make up a compound always present in the same proportions?
No, elements in a compound are not always present in the same proportions. The ratio of elements in a compound is determined by its chemical formula.
A given compound is always made of the same elements in the same?
A given compound is always made of the same elements in the same proportion.
Are Compound and elements always solid?
No, compounds and elements are not always solids. For example, hydrogen is a gas.
What information is needed to calculate the percent composition of a compound?
The formula of the compound and the Atomic Mass of its elements.
