How many grams H2O in 1 mol? The answer is 18.01528. We assume you are converting between grams H2O and mole. You can view more details on each measurement unit: molecular weight of H2O or mol This compound is also known as Water or Dihydrogen Monoxide. The SI base unit for amount of substance is the mole. 1 grams H2O is equal to 0.055508435061792 mole. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between grams H2O and mole. Type in your own numbers in the form to convert the units!
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Convert grams
H2O
to moles
Quick conversion chart of grams H2O to mol
1 grams H2O to mol = 0.05551 mol
10 grams H2O to mol = 0.55508 mol
20 grams H2O to mol = 1.11017 mol
30 grams H2O to mol = 1.66525 mol
40 grams H2O to mol = 2.22034 mol
50 grams H2O to mol = 2.77542 mol
100 grams H2O to mol = 5.55084 mol
200 grams H2O to mol = 11.10169 mol
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You can do the reverse unit conversion from moles H2O to grams, or enter other units to convert below:
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Common amount of substance conversions
grams H2O to centimol
grams H2O to decimol
grams H2O to nanomol
grams H2O to micromol
grams H2O to picomol
grams H2O to kilomol
grams H2O to molecule
grams H2O to millimol
grams H2O to atom
Details on molecular weight calculations
In chemistry, the formula weight is a quantity computed by multiplying the atomic weight (in atomic mass units) of each element in a chemical formula by the number of atoms of that element present in the formula, then adding all of these products together.
The atomic weights used on this site come from NIST, the National Institute of Standards and Technology. We use the most common isotopes. This is how to calculate molar mass (average molecular weight), which is based on isotropically weighted averages. This is not the same as molecular mass, which is the mass of a single molecule of well-defined isotopes. For bulk stoichiometric calculations, we are usually determining molar mass, which may also be called standard atomic weight or average atomic mass.
If the formula used in calculating molar mass is the molecular formula, the formula weight computed is the molecular weight. The percentage by weight of any atom or group of atoms in a compound can be computed by dividing the total weight of the atom (or group of atoms) in the formula by the formula weight and multiplying by 100.
Formula weights are especially useful in determining the relative weights of reagents and products in a chemical reaction. These relative weights computed from the chemical equation are sometimes called equation weights.
Using the chemical formula of the compound and the periodic table of elements, we can add up the atomic weights and calculate molecular weight of the substance.
A common request on this site is to convert grams to moles. To complete this calculation, you have to know what substance you are trying to convert. The reason is that the molar mass of the substance affects the conversion. This site explains how to find molar mass.
Finding molar mass starts with units of grams per mole (g/mol). When calculating molecular weight of a chemical compound, it tells us how many grams are in one mole of that substance. The formula weight is simply the weight in atomic mass units of all the atoms in a given formula.
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