Use the equation;
mass=moles*gramformulamass
or
m=n*gfm
m=2*55.8 = 111.6g in two moles of Iron
gfm or the molecular mass of a compound can be found by adding the Relative atomic masses of each element in the compound together.
For example - Carbon dioxide
CO2
The formula contains 1 Carbon atom and 2 Oxygen atoms
(RAMs should be found in a datasheet/book or provided in the question. RAM = relative Atomic Mass)
RAM Carbon = 12 RAM Oxygen = 16
gfm of CO2 = 12 + 32 = 44
or 1mole of CO2 = 44g
One mole of bromine (Br2) weighs approximately 159.808 grams.
A mole of hydrogen contains Avogadro's number of hydrogen atoms, while a mole of uranium contains Avogadro's number of uranium atoms. Hydrogen is a light element with a low atomic weight, while uranium is a heavy element with a high atomic weight. This means that a mole of hydrogen weighs much less than a mole of uranium.
1 mole of any substance contains 6.02x1023 representative particles. That is called Avogadro's number, and it's one of the most important constants in science. So, 3 moles of carbon would be 3 times that, which would be 18.06x1023, which simplifies to 1.806x1024 atoms.
1/(6.02214 x 1023) = 1.66054*10-24 molesC-atoms= 1 C-atom
Based on the balanced chemical equation 2Fe + 3S -> Fe2S3, the molar ratio of Fe to S is 2:3. First, convert the 48.0 grams of sulfur to moles, then use the molar ratio to find the moles of iron needed. Finally, convert the moles of iron to grams to determine the required amount of iron.
A mole of deuterium atoms would weigh approximately 2 grams. This is because the atomic mass of deuterium is around 2 grams per mole.
It is 55.8 grams.
The amount of particles (any kind) in ONE mole (of any substance) is always equal to Avogadro's number: 6.02*10+23 (This is the definition of a 'Mole'. It is just a number like a 'dozen' -12- or 'gross' -144-, though much larger. There is nothing 'chemical' in this number, however) So, here is your answer: 0.56 mole = 0.56 * 6.02*10+23 = 3.37*10+23
Use stoichometry to figure this out. 1 mole Fe * 56 g Fe ...............1 mole Fe
1 mole of O (oxygen) weighs 15. 9996 grams. By definition, 1 mole of any element is equal to its atomic weight expressed in grams. 1 mole is equal to 6.02 x 1023 atoms of that element.
In iron(III) oxide (Fe2O3), there are two iron atoms per molecule. Since the atomic weight of iron is approximately 55.85 g/mol, the total weight of iron in one mole of Fe2O3 would be around 111.7 g.
A mole weighs 58 grams
Use the Avogadro constant 2.50 x 10^20 atoms Fe x ( 1 mol Fe / 6.023 x 10^23 atoms) =4.15 x 10^-4 mol
1 mole of neon weighs approximately 20.18 grams.
6 feet
3.017005 gm
One mole of bromine (Br2) weighs approximately 159.808 grams.