the answer is there number of atoms
10 milligrams iron (1 gram/1000 milligrams)(1 mole Fe/55.85 grams)(6.022 X 1023/1 mole Fe) = 1.1 X 1020 atoms of iron ===================
the atomic mass of FeS2 is 110. You cannot find the no. of moles in a mole of FeS2 coz it is only a mole.
4,80 moles of Fe contain 28,9062761136.10e23 atoms.
55.8 moles
the answer is there number of atoms
Both a mole of magnesium Mg and a mole of iron Fe contain Avogadro's number of atoms of each element, which is approximately 6.022 x 10^23. This makes them both representative samples of their respective elements in terms of the number of atoms present.
Use stoichometry to figure this out. 1 mole Fe * 56 g Fe ...............1 mole Fe
10 milligrams iron (1 gram/1000 milligrams)(1 mole Fe/55.85 grams)(6.022 X 1023/1 mole Fe) = 1.1 X 1020 atoms of iron ===================
no it does not!
If the moles of Fe2O3 are known, you would use the mole ratio from the balanced chemical equation for the reaction involving Fe2O3 and Fe. In the balanced equation, the mole ratio between Fe2O3 and Fe is 2:2, which simplifies to 1:1. This means that for every mole of Fe2O3, there is an equivalent mole of Fe.
the atomic mass of FeS2 is 110. You cannot find the no. of moles in a mole of FeS2 coz it is only a mole.
4,80 moles of Fe contain 28,9062761136.10e23 atoms.
To determine the number of iron atoms in a 23.0 g iron block, you would first calculate the number of moles of iron using the molar mass of iron (55.85 g/mol). Then, you would use Avogadro's number (6.022 x 10^23 atoms/mol) to convert moles of iron to atoms.
The formula weight of NaCl is 58.44 which means 58.44 g = 1 mole. Since 1000 mg = 1 g, this gives 58.44 g/mole x 1000 mg/g = 5.844 E+4 mg/mole. Then, 52.1 mg NaCl x 1 mole NaCl/5.844E+4 mg = 8.92 E-4 mole. See, this is just done by using the definitions of the units and the factor label method to analyze the conversion.
55.8 moles
The atomic mass of iron (Fe) is approximately 55.85 grams per mole.