Water (chemical formula: H2O) is a transparent fluid which forms the world's streams, lakes, oceans and rain, and is the major constituent of the fluids of organisms. As a chemical compound, a water molecule contains one oxygen and two hydrogen atoms that are connected by covalent bonds. Water is a liquid at standard ambient temperature and ...

Water is an inorganic compound with the chemical formula H 2 O. It is a transparent, tasteless, odorless, [c] and nearly colorless chemical substance. It is the main constituent of Earth's hydrosphere and the fluids of all known living organisms (in which it acts as a solvent [20]).

2019年11月12日 · Water (H 2 O) is made from 2 atoms of hydrogen and 1 atom of oxygen. A mole of water molecules would be 2 moles of hydrogen atoms plus 1 mole of oxygen atoms. From the periodic table we see the atomic weight of hydrogen is 1.0079 and the atomic weight of oxygen is 15.9994. Atomic mass is the number of grams per mole of the element.

Water has a very high specific heat capacity of 4184 J/(kg·K) at 20 °C (4182 J/(kg·K) at 25 °C)—the second-highest among all the heteroatomic species (after ammonia), as well as a high heat of vaporization (40.65 kJ/mol or 2268 kJ/kg at the normal boiling point), both of which are a result of the extensive hydrogen bonding between its ...

2020年10月20日 · One mole of water is 6.022 x 10 23 water molecules. To find the mass of one mole of water, follow these steps: Find the chemical formula. The chemical formula for water is H 2 O. So, each water molecule has two atoms of hydrogen and one atom of oxygen. Look up the atomic masses of hydrogen and oxygen from the periodic table.

Water. Formula: H 2 O; Molecular weight: 18.0153; IUPAC Standard InChI: InChI=1S/H2O/h1H2 Copy. IUPAC Standard InChIKey: XLYOFNOQVPJJNP-UHFFFAOYSA-N Copy; CAS Registry Number: 7732-18-5; Chemical structure: This structure is also available as a 2d Mol file or as a computed 3d SD file

In the following table, material data are given for standard pressure of 0.1 M Pa (equivalent to 1 bar). Up to 99.63 °C (the boiling point of water at 0.1 MPa), at this pressure water exists as a liquid. Above that, it exists as water vapor.

Water (H 2 O, HOH) covers 70-75% of the Earth's surface in its liquid and solid (ice) states, and is present in the atmosphere as a vapor. It is the most abundant molecule on the Earth's surface. [4] At room temperature, it is a nearly colorless, flavorless, and odorless liquid.

Calculate the molar mass of Water in grams per mole or search for a chemical formula or substance.

One mole contains exactly 6.022 ×10 23 particles (Avogadro's number) Identify the compound: write down the chemical formula of the compound. For example, water is H 2 O, meaning it contains two hydrogen atoms and one oxygen atom. Find atomic masses: look up the atomic masses of each element present in the compound.