What is a dozen?
*twelve
What is a case?
*twenty-four
What is a gross?
*One hundred forty four(a dozen dozen or 12 X 12)
What is a mole?
* Mass of 1 mole of atoms
Is an amount of substance that contains the same number of elementary units as there are atoms in exactly 12 g of carbon-12. That number is 6.02 X 10 to the 23
How many planet earth's are needed to have a mole of people?
6 X 10 to the 14 divided by 6 billion=16,666 earths are needed
Daily Na sodum intake per day
1500 mg = 1.5 g
23 g Na Atoms 1 mole of Na atoms
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