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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 americium 242 mass?
The atomic mass of the isotope americium-242 is 242,059 549 2.
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
If the atomic mass of a carbon is 12 amu 1 mole of pure carbon will have a mass of?
1 mole of carbon atoms will have a mass of 12 grams (atomic mass in amu is numerically equivalent to the molar mass in grams per mole).
What particular isotope is the basis for defining the atomic mass unit and the mole?
The atomic mass unit (amu) and the mole are defined based on the carbon-12 isotope (^12C). Specifically, one atomic mass unit is defined as one twelfth of the mass of a carbon-12 atom, which establishes a standard for measuring atomic and molecular masses. Additionally, one mole of substance is defined as containing exactly 6.022 x 10^23 entities (atoms, molecules, etc.), which corresponds to the number of atoms in 12 grams of carbon-12.
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 one mole in actinium?
For the isotope actinium-227 the mass is 227,027 752 1(26) g.
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 americium 242 mass?
The atomic mass of the isotope americium-242 is 242,059 549 2.
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
If the atomic mass of a carbon is 12 amu 1 mole of pure carbon will have a mass of?
1 mole of carbon atoms will have a mass of 12 grams (atomic mass in amu is numerically equivalent to the molar mass in grams per mole).
What particular isotope is the basis for defining the atomic mass unit and the mole?
The atomic mass unit (amu) and the mole are defined based on the carbon-12 isotope (^12C). Specifically, one atomic mass unit is defined as one twelfth of the mass of a carbon-12 atom, which establishes a standard for measuring atomic and molecular masses. Additionally, one mole of substance is defined as containing exactly 6.022 x 10^23 entities (atoms, molecules, etc.), which corresponds to the number of atoms in 12 grams of carbon-12.
What is the Relative atomic mass of chromium?
Chromium is a meta element. Atomic mass of it is 52.
The molar mass of a mole of lead?
molar mass =207.2 g / mol no. moles = mass/ molar mass moles = 1 1(207.2) = mass mass of 1 mole lead is 207.2g molar mass =207.2 g / mol no. moles = mass/ molar mass moles = 1 1(207.2) = mass mass of 1 mole lead is 207.2g
What is the atomic mass of the element silicon?
Silicone is a non meta element. Atomic mass of it is 28.
What element has mass number of 34 and atomic number 16?
Several elements have known isotopes with mass number 34:34Ne - an isotope of neon with half-life >1.5 µs34Na - an isotope of sodium with half-life 5.5 ms34Mg - an isotope of magnesium with half-life 20 ms34Al - an isotope of aluminum with half-life 56.3 ms34Si - an isotope of silicon with half-life 2.77 s34P - an isotope of phosphorous with half-life 12.43 s34S - a stable isotope of sulfur34Cl - an isotope of chlorine with half-life 1.5264 s34Ar - an isotope of argon with half-life 844.5 ms34K - an isotope of potassium with half life
