Chemistry Final Help...?

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Chemistry Final Help...?

How do you do this...

53.) Calculate the average atomic weight for magnesium.

**Then they gave me a table/chart** it says:

mass # exact weight % abundance
24 23.985042 78.99%
25 24.985837 10.00%
26 25.982593 11.01%

2007-12-19 10:33:15 · 1 answers · asked by sheparddancr1217 2 in Science & Mathematics ➔ Chemistry

1 answers

multiply each exact weight by the percentage (expressed as a pure decimal) and add them all together.

2007-12-19 10:41:35 · answer #1 · answered by hcbiochem 7 · 0⤊ 0⤋