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You don't specify when you're talking about, so the answer is no.
The Atomic Mass scale used to be based on the mass of hydrogen, and then it was changed to be based on the mass of oxygen.
The problem is that some scientists used specifically the isotope oxygen-16 for the mass basis, and some used natural abundance oxygen, which includes other isotopes. So atomic mass values, even very carefully measured ones, would differ somewhat from chemistry journals to physics journals.
A few decades back they decided to redefine the mass scale again, this time explicitly basing it on the isotope carbon-12, isolated, in both its electronic and nuclear ground states, so all scientists today should be using the same scale.
What else can I help you with?
Does the mass of each element in a compound depend on the amount of compound?
Yes, because the mass of each element in a compound depends on the mass of the compound.
Which is a factor in determining the average atomic mass of an element?
The two main factors in determining the average atomic mass of an element are:the isotopic composition of the element (the fraction of each isotope)the atomic mass of each isotope
Does the atomic mass of an element depend upon the relative abundance of each isotope of the element?
Yes, the atomic mass of an element takes into account the relative abundance of each isotope of that element. This is because atomic mass is the weighted average of the masses of all isotopes of an element based on their natural abundance.
How do scientists determine the atomic mass of an atom?
Scientists determine the atomic mass of an atom by averaging the masses of all the isotopes of that element, weighted by their abundances. This information can be obtained from mass spectrometry data and is used to calculate the weighted average mass. The atomic mass is typically reported in atomic mass units (amu).
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.
What is the percent compistion of a compound?
The percent composition of a compound tells the amount of each element in the compound as a percentage. It is possible to find if the mass of an element and the total mass of the compound is known.
What do you call the mass of an element?
The mass of an element is known as it's ATOMIC Mass.
Does the mass of each element in a compound depend on the amount of compound?
Yes, because the mass of each element in a compound depends on the mass of the compound.
What is the weighed-average mass of all the known isotopes for an element called?
The weighted-average mass of all the known isotopes for an element is called the atomic weight or atomic mass. It is calculated by taking into account the abundance of each isotope and its mass to determine the average mass of all isotopes present in nature for that element.
Which is a factor in determining the average atomic mass of an element?
The two main factors in determining the average atomic mass of an element are:the isotopic composition of the element (the fraction of each isotope)the atomic mass of each isotope
If an element has three isotopes with known masses what information is needed to find the average atomic mass of the element?
You would need to know the abundance of each isotope to find the average atomic mass of the element. The average atomic mass is calculated by multiplying the mass of each isotope by its relative abundance and then summing these values together.
If an element has three isotopes with known natural abundance percentages what kind of information is needed to find the average atomic mass of the element?
To find the average atomic mass of the element, you would need the mass of each isotope and their corresponding natural abundance percentages. Multiply the mass of each isotope by its respective abundance percentage, then sum these values for all isotopes to determine the average atomic mass of the element.
If an element had three isotopes with known masses what other information is needed to find the average atomic mass of the element?
The abundance percentage of each isotope
What is always conserved in a chemical reaction?
In a chemical reaction, the total mass and the number of atoms of each element are always conserved. This is known as the law of conservation of mass.
Why need to know the percentage of each isotope of an element to determine the atomic mass?
Because each isotope of an element has a mass different from any other isotope of the same element, and the atomic mass of an element is an average, weighted by the proportion of each isotope, in the naturally occurring element.
If an element has 3 isotopes with known masses what other information is needed to find the average atomic mass of the element?
The abundance of each isotope is needed to find the average atomic mass of the element. The average atomic mass is calculated by multiplying the mass of each isotope by its abundance, summing those values, and then dividing by 100 to get the average atomic mass in atomic mass units.
Does the atomic mass of an element depend upon the relative abundance of each isotope of the element?
Yes, the atomic mass of an element takes into account the relative abundance of each isotope of that element. This is because atomic mass is the weighted average of the masses of all isotopes of an element based on their natural abundance.
