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ramamullapudi3639
15.10.2019 •
Chemistry
How many iron atoms are there in 2.50moles of each of the following? fewo4 =? atoms of fe
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Ответ:
2.50 mol FeWO4 ( 1 mol Fe / 1 mol FeWO4 ) ( 6.022 x 10^23 atoms Fe / 1 mol Fe )= 1.51 x 10^24 atoms Fe
Ответ:
There are 1.505 .10²⁴ iron atoms in 2.5 moles Wolframite (FeWO₄)
Further explanationStoichiometry in Chemistry learn about chemicals mainly emphasizes quantitative, such as the calculation of volume, mass, number, which is related to numbers, molecules, elements, etc.
The empirical formula (EF) is the smallest atomic ratio of the constituent elements.
The empirical formula shows the simplest comparison of the atoms making up the molecule
Molecular formula (MF) is a formula that shows the number of atomic elements that make up a compound.
(EF)n = MF
A mole is a unit of many particles (atoms, molecules, ions) where 1 mole is the number of particles contained in a substance that is the same amount as many atoms in 12 gr C-12
1 mole = 6.02.10²³ particles
While the number of moles can also be obtained by dividing the mass (in grams) with
In the Wolframite( FeWO₄) compound there is 1 mole of Fe atom from 1 mole of FeWO₄ molecule
So if there are 2.5 moles of FeWO₄, the number of Fe moles is the same as 2.5 moles of Fe
Then the number of Fe atom particles in 2.5 mol Fe is:
2.5 x 6.02.10²³ particles = 1.505 .10²⁴ iron atoms
Learn moreAvogadro's number
link
carbon atoms in 1.50 g of butane
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a mole and Avogadro’s number
link
Keywords: mole, Avogadro’s number, FeWO4, atoms, iron
Ответ:
A,C,C
Explanation: