find the # of molecules or ions?

0 ⤊

1.00g I-, 126.9 g/mol

2007-02-27 11:10:42 · 2 answers · asked by †ღChristian♥Girlღ† 2 in Science & Mathematics ➔ Chemistry

Here's how to find the answer:

1. Find the # of moles
2. Use Avogadro's Number

2007-02-27 11:17:16 · answer #1 · answered by Anonymous · 0⤊ 0⤋

mass given (1.00 g) divided by atomic mass (126.9 g/mol) = moles.

moles x 6.02 x 10^23 (Avogadro's number) = # atoms or ions

2007-02-27 19:17:36 · answer #2 · answered by physandchemteach 7 · 0⤊ 0⤋