# How many drops of water are in the ocean?

The ocean covers a lot as all of the named oceans and many of the seas are connected. So 'the ocean' is much bigger than 'an ocean', such as the Pacific Ocean. But if you mean the Pacific Ocean (the largest ocean of Earth) according to Wikipedia, the Pacific Ocean consists of "622 million cubic km of water". (Accessed 8/17/12)

There are about 20 drops of water in 1 milliliter(mL). For room temperature, pure water at atmospheric pressure, this is reliable to 20 drops= 1.00 mL, so our precision is about 1/100, about the same as Wikipedia's estimate of the volume. A mL is a centimeter cubed (cm= 12440 10

You may have never heard of

There are about 20 drops of water in 1 milliliter(mL). For room temperature, pure water at atmospheric pressure, this is reliable to 20 drops

^{3}). There are 100 cm in 1 meter and 1000 m in a km, so there are 10^{5}cm/km. Cube this term and you get 10^{15}cm^{3}/km^{3}. So multiply 20 drops/cm^{3}x 10^{15}cm^{3}/km^{3}x 622 x 10^{6}km^{3}^{21}drops. The second '4' and the trailing '0' of 12440 are a guess because we are only estimating, so putting it together we get,**1.24 x 10**.^{25}drops of water in just the Pacific OceanYou may have never heard of

**Avogadro's Number**, 6.022 x 10^{23}, but an Avogadro's Number of something is said to be a**mole**of something. For example, a mole of carbon-12 atoms has a mass of 12 g (definition). The number of drops of water in the Pacific Ocean is about 20.7 moles. If we matched one atom of carbon for every drop of water in the Pacific Ocean, the carbon would weigh only 248 g or about 8.75 ounces of carbon.