Question

how many moles are in 8.0 x 10^13 atoms of Ag?
explain please ​

Answer 1

1.328 × 10⁻¹⁰ Ag atoms

Explanation:

To find the number of moles we use the Avogadro's number to formulate the following reasoning:

if in          1 mole of Ag there are 6.022 × 10²³ Ag atoms

then in    X moles of Ag there are 8 × 10¹³ Ag atoms

X = (1 × 8 × 10¹³) / ( 6.022 × 10²³) = 1.328 × 10⁻¹⁰ Ag atoms

Learn more about:

Avogadro's number

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