Not many! ( how do you people keep coming up with fractional atoms? )
4.8 atoms tungsten (1 mole tungsten atoms/6.022 X 10^23)
= 8.0 X 10^-24 moles tungsten atoms
0.0845 moles of tungsten is equal to 0,50887.10e23.
5,82 x 1023 atoms of tungsten equal 0,966 moles.
It seems there might be a misunderstanding, as you can't have a fraction of an atom in the physical sense. Atoms are discrete particles, so you can have whole numbers of tungsten atoms (e.g., 1, 2, 3, etc.), but not 2.251022. If you meant to ask about a quantity of tungsten in terms of moles, you could convert it using Avogadro's number (approximately (6.022 \times 10^{23}) atoms per mole) to find how many moles correspond to that number of atoms.
This is equivalent to 1,4 moles.
1,0.10e9 atoms is equivalent to 0,166.10e-14 moles.
0.0845 moles of tungsten is equal to 0,50887.10e23.
5,82 x 1023 atoms of tungsten equal 0,966 moles.
The answer is B, 8.0 x 10^1 There are 6.023 x 10^23 atoms in one mole, of any substance. So simply divide 4.8 x 10^25 by 6.023 x 10^23, to get about 79.69 which if you convert into scientific notation, is about 8.0 x 10^1 the answer for me was A but that's on novanet
It seems there might be a misunderstanding, as you can't have a fraction of an atom in the physical sense. Atoms are discrete particles, so you can have whole numbers of tungsten atoms (e.g., 1, 2, 3, etc.), but not 2.251022. If you meant to ask about a quantity of tungsten in terms of moles, you could convert it using Avogadro's number (approximately (6.022 \times 10^{23}) atoms per mole) to find how many moles correspond to that number of atoms.
1,638 moles contain 9,864266723766.10e23 atoms.
20 moles
This is equivalent to 1,4 moles.
There are twice as many oxygen atoms as carbon atoms in carbon dioxide, so 100.0 moles of carbon dioxide would contain 200.0 moles of oxygen atoms.
The mass is 27,576 g.
no
2,50 moles of silicon contain 15,055352142.10e23 atoms.
1,0.10e9 atoms is equivalent to 0,166.10e-14 moles.