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How did avogadros number got its name?
Avogadro's number, approximately (6.022 \times 10^{23}), is named after the Italian scientist Amedeo Avogadro, who, in the early 19th century, proposed that equal volumes of gases at the same temperature and pressure contain an equal number of molecules. Although he did not directly calculate this number, his work laid the foundation for understanding the mole concept and the relationship between mass and the number of particles in a substance. The number was later named in his honor as it became a fundamental constant in chemistry.
How does the mass of a nucleus differ from the mass of an electron?
There is no simple answer.The mass of a nucleus depends on the number of neutrons and protons in the nucleus. The number of protons in the nucleus depends on the element. Moreover, the number of neutrons can vary between isotopes of the same element.
How do you convert nanograms to kilograms?
If you have some mass in nanograms, divide the number by 1,000,000,000,000 (1 trillion) to get the same mass in kilograms. 1 kilogram = 1 trillion nanograms
What is the atomic mass the weighted average of?
It's the averaged weight of all of the known isotopes of an element. Elements have versions of itself that have the same number of protons and electrons, but different number of neutrons. Since protons and neutrons have a mass of 1 amu (atomic mass unit), you change the neutron number, you change the mass . . . even though the element is still the same. Ex: Carbon 14 and Carbon 12 are isotopes of carbon. Both carbon elements, but they each have a different number of neutrons (8 vs 6), so they have different masses.
Are the same tools used to measure weight and mass?
mass is measured with a balance comparing an unknown mass with an object of known mass. weight is not measeured with the same tools as mass.
Is molar mass differ in isoelectronic compound?
Yes, the molar mass is different for isoelectronic molecules.
What does the molar mass of C7H16 and the molar mass of CaCO3 have the same number of?
Both C7H16 and CaCO3 have a molar mass of approximately 116 grams per mole.
Is atomic mass and molar mass similar and mass number of particles the same?
Atomic mass and molar mass are similar concepts but not the same. Atomic mass refers to the average mass of an atom of an element, while molar mass is the mass of one mole of a substance. The mass number of particles can be the same in certain cases, such as isotopes of the same element which have the same number of protons and different numbers of neutrons.
What is the mass of one atom of calcium?
You can work this out by dividing the molecular mass of calcium, 40, by Avogadros number, 6.02214129(27)×1023 mol−1 This will give you the answer as the molecular mass of an element is the combined weight of the number of atoms that make up one mole, which is the same as Avogadros number.
What mass of gold contains the same number of atoms as 9.00g of Aluminum?
The molar mass of gold is 197g/mol and the molar mass of aluminum is 27g/mol. Therefore, the ratio of the molar masses is 197/27=7.296. To find the mass of gold containing the same number of atoms as 9.00g of aluminum, you would take 9.00g * 7.296 = 65.664g of gold.
The molar mass of C7H16 and the molar mass of CaC03 contain approximately the same number of cations anions carbon atoms or grams?
The molar mass of C7H16 (heptane) is approximately 100.2 g/mol, while the molar mass of CaCO3 (calcium carbonate) is approximately 100.1 g/mol. Both compounds have about the same molar mass in grams, but they differ in their composition; C7H16 contains only carbon and hydrogen, while CaCO3 contains calcium, carbon, and oxygen. Therefore, they do not contain approximately the same number of cations, anions, or carbon atoms.
Is molar mass and formula mass the same?
yes it is
How are the terms molar mass and atomic mass the same?
Molar mass and atomic mass are related concepts in chemistry, but they are not the same. Atomic mass refers to the mass of a single atom of an element, typically measured in atomic mass units (amu). Molar mass, on the other hand, is the mass of one mole of a substance (which contains Avogadro's number of atoms or molecules) and is expressed in grams per mole (g/mol). For a given element, the numerical value of the molar mass in g/mol is numerically equivalent to its atomic mass in amu.
The molar mass of an element is equal to?
The element's average atomic mass.
Are molar mass and molecular mass the same?
no, but sometimes they are equal.Added:Molecular mass differs from more common measurements of the mass of chemicals, such as molar mass, by taking into account the isotopic composition of a molecule rather than the average isotopic distribution of many molecules.As a result, molecular mass is a more precise number than molar mass.However it is more accurate to use molar mass on bulk samples. This means that molar mass is appropriate most of the time except when dealing with single molecules.
What do the molar masses of any two elements contain the same number of what?
Atoms have atomic weight not molar mass. Any atom-gram has 6,022 141 29(27)×1023 (this is the number of Avogadro) atoms.
What is the mass of 2.6 g of magnesium and 1.6 g of oxygen?
The molar mass of magnesium is 24.31 g/mol, while the molar mass of oxygen is 16 g/mol. To find the mass of 2.6 g of magnesium, you can divide 2.6 g by the molar mass of magnesium (24.31 g/mol) and multiply by Avogadro's number to find the number of moles. Similarly, you can do the same calculation for 1.6 g of oxygen and then sum up the molar masses to find the total mass.
