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What is the atomic mass of a diamond?
As diamonds are almost pure carbon, the atomic mass would be carbon's atomic mass: 12.0107
What element was chosen as the standard foe defining the mole?
Carbon-12 was chosen as the standard for defining the mole because it has a precise atomic mass of 12 atomic mass units, making calculations easier for chemists to work with. This decision was made by the International Union of Pure and Applied Chemistry (IUPAC) in 1961.
What is molecular mass of pure gas?
The molecular mass of a pure gas is the sum of the atomic masses of all the atoms in its molecule. It is typically measured in atomic mass units (amu) or grams per mole (g/mol). The molecular mass is useful for calculating other properties of the gas, such as density or molar volume.
What is the atomic mass of copper and zinc?
The density of pure copper is: 8.94 g/cm^3 The density of pure zinc is: 7.13 g/cm^3
How many moles of silver are in 6.02 x 1023 atoms of silver?
http://en.wikipedia.org/wiki/Atomic_mass Conversion factor between atomic mass units and grams The standard scientific unit for dealing with atoms in macroscopic quantities is the mole (mol), which is defined arbitrarily as the amount of a substance with as many atoms or other units as there are in 12 grams of the carbon isotope C-12. The number of atoms in a mole is called Avogadro's number, the value of which is approximately 6.022 × 1023 mol-1. One mole of a substance always contains almost exactly the relative atomic mass or molar mass of that substance (which is the concept of molar mass), expressed in grams; however, this is almost never true for the atomic mass. For example, the standard atomic weight of iron is 55.847 g/mol, and therefore one mole of iron as commonly found on earth has a mass of 55.847 grams. The atomic mass of an 56Fe isotope is 55.935 u and one mole of 56Fe will in theory weigh 55.935g, but such amounts of pure 56Fe have never been found on Earth. The formulaic conversion between atomic mass and SI mass in grams for a single atom is: where u is the atomic mass unit and NA is Avogadro's number.
What is the atomic mass of a diamond?
As diamonds are almost pure carbon, the atomic mass would be carbon's atomic mass: 12.0107
What is the atomic mass for the element carbon is 12.011?
the atomic mass of just pure carbon would be twelve. the atomic mass is only effected by the number of protons and numbers of nuetrons
What are the molar mass of uranium 238?
Pure Uranium-238 has an Atomic Mass of 238.1252 amu. Thus one mole of it weighs 238.1252 grams.
How many moles are in 4.50g of carbon?
One mole of anything is Avagadro's constant, 6.02 × 1023. One mole of paperclips is 6.02 × 1023 paperclips, one mole of books is 6.02 × 1023 books, and one mole of carbon is 6.02 × 1023 atoms.
How much does carbon have?
Carbon has 6 protons, 6 electrons, and its most common isotope, carbon-12, has 6 neutrons. It has the electron configuration 1s2, 2s2, 2p2. Its atomic weight is about 12.01 grams per mole. It typically forms covalent bonds. Pure carbon can occur in two forms: the tip of a pencil and a diamond. (I'm not sure what you meant. If I didn't answer your question, post a message on my message board.)
What is the mass of one mole?
It depends on the substance. A mole is just a unit of amount, 6.02 × 1023. So that means that one mole of atoms is 6.02 × 1023 atoms; likewise, one mole of cars is 6.02 × 1023 cars and one mole of rice is 6.02 × 1023 grains. A mole of cars has a different mass than a mole of rice, so until you define what you're measuring, this question cannot be answered.
What element was chosen as the standard foe defining the mole?
Carbon-12 was chosen as the standard for defining the mole because it has a precise atomic mass of 12 atomic mass units, making calculations easier for chemists to work with. This decision was made by the International Union of Pure and Applied Chemistry (IUPAC) in 1961.
Why is atomic mass measured by relating it with the atomic mass of Carbon?
Atomic mass has always been a relative measure. Following Ostwald's recommendation, the relative atomic mass was based on Oxygen. However, in 1929, it was discovered that on this basis, the average mass of pure oxygen came out 0.0282% too high because of the heavier isotopes of oxygen.It was agreed in 1961 that the base be changed to carbon, but not just any isotope of carbon but specifically 12C.
What is molecular mass of pure gas?
The molecular mass of a pure gas is the sum of the atomic masses of all the atoms in its molecule. It is typically measured in atomic mass units (amu) or grams per mole (g/mol). The molecular mass is useful for calculating other properties of the gas, such as density or molar volume.
How many moles are in 48g of carbon?
To determine this we must first know what the molar mass of Carbon is and that equals 12.01g. This mean for every 12.01g of Carbon, we have one mole. Therefore:48gC x (1 mole C/ 12.01g C) = 3.99 molesRounded off, in 48g of Carbon there are about 4 moles.
What is the mass in grams of 1.3 moles of silver?
There are 107.9 grams in one mole of pure silver. 107.9 a.m.u. is the average mass of isotopes of the element silver Answer to another (= not this one) question: The atomic number is the number of grams in a mole of any element. Hydrogen has an atomic number of 1 so a mole of hydrogen (okay, a half-mole of H2) weighs 1 gram. [ Silver is not Hydrogen ! and an atom is not a molecule]
What is the atomic mass for oxide?
It doesn't have an Atomic Mass, it is not an element (pure substance) it is a compound and therefore only has a molar mass.
