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Many chemisty conferences have held a 50- Trillion Angstrom Run (two significant figures). How long is this run in kilometers and in miles? (1 A = 1 x 10-10m)

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JannetPalos

Answer:

The run is 5.0 km or 3.1 mile long

Explanation:

1 trillion = [tex]10^{12}[/tex]

So, 50 trillion = [tex]50\times 10^{12}[/tex]

[tex]1\AA =1\times 10^{-10}m[/tex]

So, [tex]50trillion\AA =50\times 10^{12}\times 1\times 10^{-10}m=50\times 10^{2}m[/tex]

[tex]1m=10^{-3}km[/tex]

So, [tex]50trillion\AA =50\times 10^{2}\times 1\times 10^{-3}km=5.0km[/tex]

[tex]1km=0.621mile[/tex]

So, [tex]50trillion\AA =5.0\times 0.621mile=3.1mile[/tex]

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