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What nuclide is used as standard relative scale for atomic masses?

Carbon-12 is used as the standard relative scale for atomic masses. This is defined as having a mass of exactly 12 atomic mass units (u). Other elements are compared to this standard to determine their atomic masses.


Why do chemists use relative masses of atoms compared to a reference isotope rather than absolute masses in their calculations?

Chemists use relative masses of atoms compared to a reference isotope because it allows for easier comparison and calculation of chemical reactions. Absolute masses can vary, but relative masses provide a consistent point of reference for analysis.


How can you tell if two liquids with the same volume which one has greater density?

To determine which liquid has greater density, you would need to compare their masses. Density is calculated by dividing an object's mass by its volume. By measuring the mass of both liquids and knowing their volumes (which are equal in this case), you can calculate their densities and determine which one is greater.


What does the metric system help scientists do?

measure objects, masses. and liquids.


When a gas or liquid is heated it is what?

Heating gasses or liquids has no effect on their masses.


What information is necessary to determine the atomic mass of the element chlorine?

To determine the atomic mass of chlorine, you would need to know the relative abundances of its isotopes and their respective atomic masses. Chlorine has two stable isotopes: chlorine-35 and chlorine-37. By using the abundance of each isotope and their atomic masses, you can calculate the average atomic mass of chlorine.


If you know the molar masses of the reactants in a chemical reaction can you determine the molar masses of the products?

If you know know the molar masses of the reactants in a chemical reaction you can determine the molar masses of the products because the combined molar masses of the reactants equals the combined molar masses of the products.


What can you infer about the relative masses of two people on a seesaw?

hh


Why are gram formula masses called relative masses?

They are called relative masses because all of the masses of the elements are measured relative to the mass of an isotope of carbon called carbon-12. Carbon-12 has been assigned a mass of exactly 12 atomic mass units. One atomic mass unit has an actual value of 1.660538782(83)×10^−27 kg.


Why is the relative atomic mass of an element relative to carbon-12?

The relative atomic mass of an element is compared to carbon-12 because carbon-12 is used as a standard reference point for measuring atomic masses. This comparison helps scientists determine the mass of atoms of different elements in relation to each other.


How can one determine the relative atomic mass of an element?

The relative atomic mass of an element can be determined by calculating the weighted average of the masses of its isotopes, taking into account their abundance in nature. This value is usually expressed in atomic mass units (amu) and can be found on the periodic table.


Why is the atomic mass scale also called the relative atomic mass scale?

All atomic masses are determined by comparing them to the mass of an atom of carbon12. One atomic mass unit equals one twelfth the mass of an atom of carbon12. That's why its called relativeatomic mass.