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| Science Faculty |
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| Mole Facts |
The mole is the number of atomic mass units in 1 gram. This number is 6.02 x 1023, also known as the Avogadro constant. Each 1H atom weighs 1 amu so 1 mole of 1H atoms weighs 1 gram. Each 14N atom weighs 14 amu so 1 mole of 14N atoms weighs 14 grams. Each NH3 molecule weighs 17 amu so 1 mole of NH3 molecules weigh 17grams. |
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1 mole (6.02 x 1023) of pollen grains would cover London to a depth of 1 mile. |
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1 mole (6.02 x 1023) of marshmallows would cover the USA to a depth of 600 miles. |
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Taking out one water molecule every second, it would take 5.3 x 1015 years to remove all the water molecules in a teaspoon (5 cm3) of water. |
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If the water molecules in a teaspoon of water were laid out end to end they would stretch for 1.04 x 1010 miles - to the sun and back 56 times. |
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The average cow burps 30 moles of Methane every day. |
