# Chemistry

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

• Chemistry -

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 -

but then what after you get that info?

• Chemistry -

2.918 billion pennies

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