A typical lightbulb filament, whose mass is 0.0176 g, contains 5.76 × 10¹⁹ atoms of tungsten.
The mass of a typical lightbulb filament of tungsten is 0.0176 grams. We can convert 0.0176 g to moles using the molar mass of tungsten (183.84 g/mol).
[tex]0.0176 g \times \frac{1mol}{183.84g} = 9.57 \times 10^{-5} mol[/tex]
To convert 9.57 × 10⁻⁵ mol to atoms, we will use Avogadro's number: there are 6.02 × 10²³ atoms in 1 mole of atoms.
[tex]9.57 \times 10^{-5} mol \times \frac{6.02 \times 10^{23}atom }{1mol} = 5.76 \times 10^{19}atom[/tex]
A typical lightbulb filament, whose mass is 0.0176 g, contains 5.76 × 10¹⁹ atoms of tungsten.
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