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Sagot :
Explanation:
moles= number of particle or atom / 6.02×10^23
so
[tex] \frac{1.1 \times {10}^{20 } }{6.02 \times {10}^{23} } [/tex]
gives u 1.83×10^-4 moles
hope it make sense :)
Answer:
1.7 * 10^-4 moles
Explanation:
According to Avogadro, one mole of a substance contains 6.02 * 10^23 number of atoms, molecules, ions etc.
Hence;
1 mole of Na contains 6.02 * 10^23 atoms
x moles of Na contains 1.0x10^20 atoms
x = 1.0x10^20 * 1/6.02 * 10^23
x = 1.7 * 10^-4 moles
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