In order to compare the number of atoms, one needs to first convert the masses into moles:
3 g Fe x 1 mole/55.8 g = 0.054 moles Fe
2 g S x 1 mole/32 g = 0.063 moles S
Therefore, 2 g of sulfur contains more atoms than does 3 g of Fe. This is because 1 mole of ANY element contains 602x10^23 atoms, so the more moles you have, the more atoms you have.
25,1 grams sulfur contain 4,7147765.10e23 atoms.
6.02 grams sulfur (1mole S/32.07 grams)(6.022 X 10^23/1 mole S) = 1.13 X 10^23 atoms sulfur
The atomic weight of sulfur is about 32.066. Therefore, 155 grams of sulfur contains 155/32.066 or about 4.83 gram atomic masses of sulfur to the justified number of significant digits. Each such gram atomic mass contains Avogadro's number of atoms, for a total of 4.83 X 6.022 X 1023 or 2.91 X 1024 atoms.
48.0 grams sulfur (1 mole S/32.07 grams)(6.022 X 10^23/1 mole S) = 9.01 X 10^23 atoms of sulfur
Full formal set up. 48.096 grams sulfur (1 mole S/32.07 grams)(6.022 X 1023/1 mole S)(1 mole S atoms/6.022 X 1023) = 1.4997 moles of sulfur atoms ---------------------------------------
25,1 grams sulfur contain 4,7147765.10e23 atoms.
3,09x10e24 atoms of sulfur in grams is equal to 164,65 g.
The formula for sulfur trioxide is SO3. The molecular weight is 80.06. The atomic weight of sulfur is 32.06. Therefore, the fraction by weight of sulfur in sulfur trioxide is 32.06/80.06 is 0.4004, to the justified number of significant digits, so that 9.96 grams of sulfur trioxide contains 3.988 grams of sulfur. The number of atoms present in 3.988 grams of sulfur therefore is Avogadro's Number X (3.988/80.06) or 3.000 X 1021 atoms, to the justified number of significant digits. (Note: A depressed final digit in a decimal means that the digit may not be significant.)
1.12875 × 1023
93,341,000,000,000,000,000,000,000 or 933.41 x 1023 atoms of arsenic. You just take Avogadro's number (6.022 x 1023) and multiply 6.022 by the number of moles (155) and then multiply the product by 1023.
6.02 grams sulfur (1mole S/32.07 grams)(6.022 X 10^23/1 mole S) = 1.13 X 10^23 atoms sulfur
Just about 6.022 X 1023 atoms of sulfur. Sulfur is 32.07 grams per mole.
I think you meant 3.09x10^24 atoms of sulfur. 3.09x10^24 atoms * (1 mol / 6.02x10^32 atoms) * (32 g / 1mol) = 165 grams
Just about 6.022 X 1023 atoms of sulfur. Sulfur is 32.07 grams per mole.
Just about 6.022 X 1023 atoms of sulfur. Sulfur is 32.07 grams per mole.
The atomic weight of sulfur is about 32.066. Therefore, 155 grams of sulfur contains 155/32.066 or about 4.83 gram atomic masses of sulfur to the justified number of significant digits. Each such gram atomic mass contains Avogadro's number of atoms, for a total of 4.83 X 6.022 X 1023 or 2.91 X 1024 atoms.
A sulfur molecule has the formula S8. Multiply the number of sulfur atoms (8) times the atomic weight of sulfur in grams (32.065g). The molar mass of S8 = 256.52g S8.