# How many grams of hydrogen and oxygen are in 100 grams of water?

When we run electricity through 100 grams of clean water, we obtain 11 grams of hydrogen and 89 grams of oxygen. This experiment demonstrates that water is always composed of the same two elements, hydrogen and oxygen, in the same constant proportion of 11:89, or 1:8 by mass. The hydrogen and oxygen atoms are joined together into molecules because they like to share their electrons. If there were no such thing as intermolecular force, all the water on Earth would be gas instead of a liquid.

The electron configuration of hydrogen is 1s1. That means it has one valence electron, which will seek out another particle to share its charge with. Since each oxygen atom has eight electrons in its outer shell, it will take two hydrogen atoms to combine with it to make water.

This composition of water was first discovered by Antoine Lavoisier in 1777. He showed that hydrogen and oxygen combine to form water under the standard conditions of temperature and pressure. Since then, other compounds of hydrogen and oxygen have been found in nature, for example, hydrochloric and nitric acids. However modern laboratories can produce hydrogen and oxygen gases at almost any ratio you want by using electrical currents from batteries or fuel cells.

In conclusion, water is made up of hydrogen and oxygen. They are combined into molecules by intermolecular forces.

## What is the percentage composition of H and O in water?

Because the proportion of an element in a compound is 100 times the fraction, the mass percent hydrogen in water is 11.11 percent and the mass percent oxygen is 88.89 percent. The actual concentration of each element in water is about 1 part in 10 million for hydrogen and 1 part in 16 thousand for oxygen.

The average human body is made up of approximately 60 percent water by weight. The remaining 40 percent are made up of other substances including: proteins (about 5 percent), fat (about 7 percent), and minerals (1 percent). Proteins are composed of amino acids which are also compounds containing carbon, hydrogen, oxygen, nitrogen, and sulfur. Fat is also a complex molecule containing chains of carbon atoms with some atoms replaced by elements such as hydrogen or oxygen. Minerals are mostly molecules of carbon and hydrogen arranged in specific crystal structures. Some examples include calcium carbonate (CaCO3) and chalk, which are both forms of CaCO3; gypsum, which is CaSO4; and salt, which is NaCl.

Human blood is nearly 20 percent water by volume. Other than water, blood is made up of proteins, red cells, white cells, enzymes, glucose, salts, and other chemicals. Blood contains about 75 billion red blood cells and about 250 trillion white blood cells.

## What percentage of water is h2o?

As a result, the bulk composition of water is 11.19 percent hydrogen and 88.81 percent oxygen. The average mass of one molecule of H2O is 18.015 grams (0.08215 ounces). Therefore, the mass of a typical gallon of water is 1.812 pounds (0.811 kg).

This means that 1 gallon of water contains: 38.314453 milligrams of hydrogen - the same amount as in 1 cubic centimeter of gas at standard temperature and pressure; and 61.686275 milligrams of oxygen - the same amount as in 1 cubic meter of air at standard temperature and pressure.

Since hydrogen is more voluminous than oxygen, water is a non-ideal gas. That is, it does not behave like a pure substance in that it cannot be compressed into a solid or liquid without changing its physical properties. Water also exhibits other phenomena associated with a gas, such as becoming lighter as it evaporates.

Furthermore, because each oxygen atom is about 50 times heavier than a single hydrogen atom, water is a relatively heavy compound. It takes about eight molecules of hydrogen per molecule of oxygen to balance out their relative masses.

## When 8g of hydrogen and 8g of oxygen are combined, the amount of water produced is?

9 grams of water may be created when 8 g of hydrogen combines with 8 g of oxygen. However, some of this water will be lost as vapor in the air because it can't stand its own weight.

The remaining 6 grams of water will form a solid compound called dihydrogen oxide (DHO). The dihydrogen oxide melts at 80 degrees Celsius and is very flammable. It is not known exactly what happens to the DHO once it melts, but it probably forms another type of oxide since no more hydroxide is observed after the mixture is cooled.

It is possible that all of the water produced by the reaction is recovered. If not, then some of the water must be lost as vapor in the air.

This experiment shows that only part of the water produced by the reaction between hydrogen and oxygen remains as liquid while the rest turns into gas. This demonstrates that water cannot remain in its liquid state for long under normal conditions.

Furthermore, even if all of the produced water was recovered, it would still be less than what is used up during the reaction, so some loss must occur.

## What mass of hydrogen H2 will react with 100 g of oxygen O2 to form water?

One mole of water necessitates one mole of hydrogen (H2) and 0.5 mole of oxygen (O2). This necessitates the use of 100 moles of hydrogen. Because the molar mass of hydrogen is 2, 200/18 = 100/9 g of hydrogen is required. To create 100 g of water, 100 g of hydrogen gas and 800 g of oxygen gas are needed. The reaction can be expressed as: 100 g of hydrogen + 800 g of oxygen -> water.

Hydrogen gas is very flammable so it must be stored in high-quality tanks with fire protection equipment. It is important not to have any leaks because this would lead to an explosion.

Water is a highly reactive molecule and will often combine with other molecules or atoms. For example, when water reacts with oxygen it forms ozone (O3), a potent greenhouse gas. Water also oxidizes metals such as iron or copper to form oxides which may be insoluble salts that can redissolve if they come into contact with more hydroxide ions. These reactions are useful for removing pollutants from water supplies or for stripping minerals from ore bodies.

The most common reaction between hydrogen and oxygen is the formation of water: H2(g) + O2(g) -> 2 H2O(l). The reverse reaction requires energy input and is unlikely to occur at standard temperature and pressure. However, at high temperatures (above 500 °C) the reverse reaction can become significant.

##### Max Rose

Max Rose is an educator and writer. He loves to help people understand complex topics in easy to understand ways. He also enjoys sharing his own personal stories about what it's like being an educator in this field.

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