arevalok arevalok

07-10-2016
Chemistry

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Calculate the number of atoms in a 5.87 × 103 g sample of sodium.

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Willchemistry Willchemistry

07-10-2016

Atomic mass Na = 22.98 a.m.u

22.99 g -------------- 6.02x10²³ atoms
5.87x10³ g ---------- ?? atoms

( 5.87x10³ ) x 6.02x10²³ / 22.98 =

1.537.10²⁶ atoms of Na

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