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How many protons are in a liter of pure water?

Updated: 8/10/2023
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Miketreschitta

Lvl 1
11y ago

Best Answer

1 liter is 1000 milliliters and water is 1 gram per milliliter, so

one liter water = 1000 grams

1000 grams H2O (1 mole H2O/18.016 grams)

= 55.5 moles of water

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Wiki User

12y ago
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11y ago

By count, two thirds of the atoms in a litre of water are hydrogen atoms.

By definition, a litre of pure water at 4°C and normal atmospheric pressure has the mass of exactly 1 kilogram. A water molecule is two hydrogens and one oxygen. Hydrogen has the weighted natural average mass of 1.00794 amu and Oxygen, 15.994 amu.

That makes the water molecule weigh 1.00794 x 2 + 15.994 = 18.00988 amu.

The ratio of the mass of hydrogen to the whole is 0.1119 to 1. With proper rounding, that means that 0.112 kg of every 1 kg of water is hydrogen.

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Wiki User

13y ago

1000 grams

ml and grams are the same (only when it comes to water)

so 1L is 1000ml, therefore 1L is 1000 grams

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12y ago

Well, according to the answer on a practice Fermi questions test, there is 10^17 electrons in one liter of water

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11y ago

1000/18 x 6.022 x 1023 x 10 = 3.346 x 1026 protons

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