Final answer:
To determine the number of silicon atoms in 1.5x10⁻³ moles, multiply the moles by Avogadro's number, resulting in 9.033x10²° silicon atoms.
Step-by-step explanation:
The student has asked how many atoms of silicon are there in 1.5x10⁻³ moles of silicon. To find the number of atoms, we use Avogadro's number, which is 6.022x10²³ atoms per mole. The calculation is straightforward:
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- Number of atoms = moles of silicon × Avogadro's number
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- Number of atoms = 1.5x10⁻³ moles × 6.022x10²³ atoms/mole
This gives us the total number of silicon atoms present in the given moles:
Number of atoms = 9.033x10²° silicon atoms.