How Much Oxygen and Hydrogen Are in 1 Litre of Water? Explained
Discover the exact amounts of oxygen and hydrogen in 1 litre of water and learn the science behind water's molecular composition.
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1 litre of water contains approximately 888 grams of oxygen (O2) and 112 grams of hydrogen (H2). Specifically, water molecules are made of 2 hydrogen atoms and 1 oxygen atom, and since 1 mole of water (18 grams) comprises 16 grams of oxygen and 2 grams of hydrogen, you can scale this ratio up to 1 litre (1000 grams) of water.
FAQs & Answers
- What is the molecular formula of water? The molecular formula of water is H2O, meaning each molecule contains 2 hydrogen atoms and 1 oxygen atom.
- How are the weights of oxygen and hydrogen calculated in water? Weights are calculated based on the molecular weight of water (18 grams per mole), with oxygen contributing 16 grams and hydrogen contributing 2 grams per mole, then scaled to the desired quantity.
- Why does 1 litre of water weigh approximately 1000 grams? Because water has a density close to 1 gram per milliliter at standard temperature, so 1 litre (1000 milliliters) weighs about 1000 grams.