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According to the definition by IUPAC, the mass of a mold of carbon-12 isotope is exactly 12.0000 g.
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What number is written after the isotope when writing the name?
The atomic mass number of that isotope. So C14 has a molecular mass of 14 grams/mole U238, 238 grams/mole
What is the mass of 1.5 moles of helium atoms?
1 mole of He-4 isotope weight about 4 g So 1.5 mole of He-4 isotope weight about 6 g
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.
What is the Relative atomic mass of chromium?
Chromium is a meta element. Atomic mass of it is 52.
How is a mole related to the atomic mass?
The atomic mass, in grams, is the mass of one mole of atoms.
What number is written after the isotope when writing the name?
The atomic mass number of that isotope. So C14 has a molecular mass of 14 grams/mole U238, 238 grams/mole
How many carbon atoms are present in a mole of carbon12?
6.023 x 1023
What is the mass of 1.5 moles of helium atoms?
1 mole of He-4 isotope weight about 4 g So 1.5 mole of He-4 isotope weight about 6 g
What is the mass of one mole in actinium?
For the isotope actinium-227 the mass is 227,027 752 1(26) g.
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.
What would be an isotope of carbon12?
The 12 in Carbon-12 designates the isotope which has an atomic mass of 12. This is the most abundant isotope of carbon. Carbon has an atomic number of 6, therefore it has 6 protons. Carbon 12, therefore has 6 neutrons. Carbon 14 is another isotope of carbon, still having 6 protons, but has 8 neutrons, so it has an atomic mass of (6 + 8 = 14). See related link for more information on carbon isotopes.
What is the Relative atomic mass of chromium?
Chromium is a meta element. Atomic mass of it is 52.
How is a mole related to the atomic mass?
The atomic mass, in grams, is the mass of one mole of atoms.
If the atomic mass of a carbon is 12 amu 1 mole of pure carbon will have a mass of?
If the atomic mass of a carbon is 12 amu, 1 mole of pure carbon will have a mass of 12 g. (that's the way an a.m.u. is defined: 1 a.m.u. = 1/12th of the mass of C-12 isotope atom)
What is the mass in grams of 5 mole of 12C?
the mass of carbon-12 atom in mole is 12 only...
What is the atomic and mass number of potassium?
The atomic number is 19 and the mass number of its most abundant isotope K-39 is 39 (19 protons + 20 neutrons) while the mass of that isotope is 38.96371 a.m.u.The relative atomic mass of the element potassium, K, is 39.10 g/mole.
What is the standard for atomic mass unit called?
One twelfth (1/12) the mass of a carbon-12 atom is one atomic mass unit (amu, or just u).
