One mole of water has a molecular mass of 18 grams. Two moles of water have a molecular mass of 18×2=36 grams. Thus the molecular mass of two moles of water is 36 grams.
What is the mass of 2 mole of water?
One mole of H2 O is made up of 2 moles of Hydrogen atoms and 1 mole of Oxygen atom. Mass of two moles of Hydrogen atoms = 2x 1 g/mol = 2 g/mol. Mass of one mole of water = 2 g/mol + 16 g/mol = 18 g/mol.
How many grams of water is in a mole?
The average mass of one H2O molecule is 18.02 amu. The number of atoms is an exact number, the number of mole is an exact number; they do not affect the number of significant figures. The average mass of one mole of H2O is 18.02 grams. This is stated: the molar mass of water is 18.02 g/mol.
How many grams are in 2.00 moles?
2.00 mol Ne has a mass of 40.4 g .
How many water molecules are in 2 moles of water?
There are therefore 6.02 × 10 23 water molecules in a mole of water molecules.
How many grams are in 3 moles of H2O?
Clearly, that is 54g. One mole of any substance is equal to its molar mass. 3 moles of water has a mass of 30g. similarly 1 mole of water is equivalent to molecular mass of water x 3 that is 18×3=54 gram.
What does 1 mole of water look like?
Thus, for example, one mole of water (H2O) contains 6.02214076×1023 molecules, whose total mass is about 18.015 grams and the mean mass of one molecule of water is about 18.015 daltons, roughly a combined atomic mass number of 18.
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How many grams of H2O are there in 2.50 mol of H2O?
The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles H2O, or 18.01528 grams.
How many grams is in a mole?
The mass of one mole of a substance is equal to that substance’s molecular weight. For example, the mean molecular weight of water is 18.015 atomic mass units (amu), so one mole of water weight 18.015 grams.
How many atoms are in 2 moles water?
1: Two water molecules contain 4 hydrogen atoms and 2 oxygen atoms. A mole of water molecules contains 2 moles of hydrogen atoms and 1 mole of oxygen atoms. Sulfuric acid has the chemical formula H2SO4.