There are approximately 5.55 moles of H2O in 100 grams.
So let us examine the request more closely
Water, with its chemical formula H2O, is a ubiquitous compound, essential to life on Earth. The question of how many moles are present in 100 grams of water can be answered by using the molar mass of H2O, which is approximately 18.015 g/mol.
To calculate the number of moles present in 100 grams of water, we need to divide 100 by the molar mass of H2O. This gives us:
100 g / 18.015 g/mol = 5.550 mol (rounded to three significant figures)
“Water is the driver of Nature.” – Leonardo da Vinci
Interesting facts about water:
- Water makes up approximately 71% of the Earth’s surface.
- The human body is composed of about 60% water.
- Water is the only substance found on Earth in all three states: solid, liquid, and gas.
- The density of water is maximum at 4 degrees Celsius.
- Water is often called the universal solvent because it can dissolve many substances, making it an important medium for chemical reactions and biological processes.
Here is a table summarizing some of the properties of water:
| Property | Value |
|---|---|
| Chemical formula | H2O |
| Molar mass | 18.015 g/mol |
| Melting point | 0 degrees Celsius |
| Boiling point | 100 degrees Celsius |
| Density (at 25°C) | 1 g/cm3 |
| Heat capacity | 4.18 J/g·K |
| Thermal conductivity | 0.6065 W/m·K |
| Dielectric constant | 78.54 (at 20°C) |
| Surface tension | 71.97 mN/m |
| Viscosity | 0.001 Pa·s (at 20°C) |
In conclusion, 100 grams of water contain approximately 5.55 moles of H2O. Water is a fascinating compound with many unique properties, making it essential for life on Earth.
Video response to your question
The video “How many moles are in 27.0 g of H2O?” explains how to solve a chemistry problem to determine how many moles are in 27.0 grams of H2O. It emphasizes that the number of moles equals the mass divided by the molar mass of the compound, and to convert grams to moles, the molar mass must be calculated first. The molar mass of H2O is found by adding up the atomic masses of its elements, resulting in a molar mass of 18.015 grams per mole. Dividing 27.0 grams by the molar mass results in 1.50 moles with three significant figures.
Other responses to your question
5.55 molesThere are approximately 5.55 moles of water in a 100-gram sample of water. We determine this using the molar mass of water which is 18.01528 g/mol.
There are approximately 5.55 moles of water in a 100-gram sample of water.
We determine this using the molar mass of water which is 18.01528 g/mol. To convert 100 grams into moles, we simply divide the size of the sample by the molar mass of the molecule.
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m (100\;grams\;water)\left(\dfrac{1\;mole}{18.01528\;grams/mole}
ight) =…
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100 g / 18.015 g/mol = 5.551 mol .