what is the mass of a single sodium atom?

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what is the mass of a single sodium atom?

2006-10-18 07:12:30 · 3 answers · asked by Shawn 1 in Science & Mathematics ➔ Chemistry

3 answers

Sodium has an molar mass of 22.989770 grams per mole.

One mole of sodium atoms is 6.023E23 atoms.

So one atom weighs 22.989770 grams/6.023E23 atoms

doing the arithmetic, one atom weighs 3.817E-23 grams, or 38.17 yoctograms

2006-10-18 07:22:45 · answer #1 · answered by Dave_Stark 7 · 1⤊ 1⤋

The periodic table shows the mass of a mole of atoms, where one mole is 6.02 x 10^23 atoms.

For Sodium, the table shows 22.99 grs.

For on atom, 22.99/(6.02x10^23) = 3.81 x 10^(-23) grs

2006-10-18 14:26:57 · answer #2 · answered by Fxer 2 · 0⤊ 0⤋

23 g/mol * mol/6.02e23 atoms gives 3.8e-23 grams.

2006-10-18 14:24:37 · answer #3 · answered by Mr. E 5 · 0⤊ 0⤋