60 likes | 654 Views
Moles of Mars. By: Anindita & Judy. Question:. A mole of Mars candy bars placed end to end would reach from here to Mars and back how many times?. x ?. Solution:. Mars bar: 7.5 cm Mole: 6.022x10 23 bars Length of a mole of mars = 7.5 cm/bar x 6.022x10 23 bars/mol = 4.5x10 24 cm
E N D
Moles of Mars By: Anindita & Judy
Question: A mole of Mars candy bars placed end to end would reach from here to Mars and back how many times? x ?
Solution: Mars bar: 7.5 cm Mole: 6.022x1023 bars Length of a mole of mars = 7.5 cm/bar x 6.022x1023 bars/mol = 4.5x1024cm 4.5x10 24cm / 100 000 cm/km = 4.5x1019 km Earth to Mars: 55 000 000 km = 5.5x107km Earth to Mars and back = 5.5x107 km x 2 = 11x107 km 4.5x1019km / 11x107km = 4.1x1011 times
Conclusion: 4.1x1011 = 410 000 000 000 A mole of Mars candy bars placed end to end would reach from here to Mars and back 410 billion times!