Posted by **Eliza** on Wednesday, February 6, 2008 at 10:41pm.

A mole of pennies stackd on top of one another would reach from here to the sun and back how many times?

- Chemistry -
**Anonymous**, Wednesday, February 6, 2008 at 11:11pm
Need more information:

1. average thickness of penny

2. distance from earth to sun

3. you need to understand avogadros number. (6.0221415 × 10^23) Then it becomes a simple math problem.

- Chemistry -
**lisa**, Friday, February 8, 2008 at 5:40pm
but then what after you get that info?

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