# What is the mass of one mole of water molecules?

A mole is a convenient counting unit whenever one is dealing with numbers of atoms or molecules. 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 moles of H atoms) + 16 grams (for one mole O atom) = 18 grams.

Besides, how many molecules are in 3.0 moles of water?

one mole of water contains 6.02 x 1023 MOLECULES of water. But each molecule of water contains 2 H and 1 O atom = 3 atoms, so there are approximately 1.8 x 1024 atoms in a mole of water.

How many molecules of water are there in 1 gram of water?

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 moles of H atoms) + 16 grams (for one mole O atom) = 18 grams. Since we only have 0.001 grams, that means that we have NA * (0.001/18) = 3.35*1019molecules of water!

How many grams are in 2 moles of h2o?

The answer is 0.055508435061792. We assume you are converting between moles H2O and gram. This compound is also known as Water or Dihydrogen Monoxide. 1 mole is equal to 1 moles H2O, or 18.01528 grams.