How many moles of water molecules are in 18 ml of water?
One mole of water is about 18 milliliters.
It’s not a large volume, yet it contains 6.022 x 1023 water molecules! You can use the same steps to find the mass and volume of any other substance. But, the mass in grams and volume in milliliters are only the same for water and other substances with a density of 1 g/ml.
How many moles is 18 grams?
It is equal to Avogadro’s number (NA), namely 6.022 x1023. If we have one mole of water, then we know that it will have a mass of 2 grams (for 2 molesof H atoms) + 16 grams (for one moleO atom) = 18 grams.
How many atoms are there in 18 gram of water?
The chemical formula of water is H2O, in water two mole of hydrogen is present and one mole of oxygen is present. So, in a single molecule of water, two mole of hydrogen are present. 18 g of water will contain ⇒1×12.046×1023=12.046×1023 atoms of hydrogen.
What is the weight of 18 ml water?
Answer: Desity of water is approximately 1 g/cc . So 18 ml of water weights 18 gm.
How many moles are in water?
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. Notice that the molar mass and the formula mass are numerically the same.
How many moles are there in 18 gram of h2?
Hydrogen gas is a molecule. Thus answer is 9 moles.