I got but 6.02x10^22 but they answer key says otherwise? please help?
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6.02x10 ^ 23 particles contained in one mole of a substance
one mole of C3O2 weighs 12 * 3 + 16 * 2 = 68 g 6.8 g is therefore 0.1 mol and 0,1 * 6.02x10 ^ 23 = 6.02x10 ^ 22 particles (molecules)
In a single particle (molecule) contains C3O2 2 + 3 = 5 atoms
We see that the atoms must be 5 times larger than molecules.
Calculate the 6.02x10 ^ 22 * 5 = 3,01 x10 ^ 23
one mole of C3O2 weighs 12 * 3 + 16 * 2 = 68 g 6.8 g is therefore 0.1 mol and 0,1 * 6.02x10 ^ 23 = 6.02x10 ^ 22 particles (molecules)
In a single particle (molecule) contains C3O2 2 + 3 = 5 atoms
We see that the atoms must be 5 times larger than molecules.
Calculate the 6.02x10 ^ 22 * 5 = 3,01 x10 ^ 23