How many hydrogen atoms are in a mole of water?

Asked By: Yamal Louth | Last Updated: 21st February, 2020
Category: science chemistry
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Mass of 1 Mole of Water
Water (H2O) 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.

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Herein, how many oxygen atoms are in a mole of water?

A mole of water is 6.022 x 10^23 molecules of water. There is one oxygen atom in each molecule of water. There are . 16(6.022x10^23) atoms of oxygen in .

Beside above, what is the number of hydrogen atoms in 5 moles of water? 5 moles*2(because hydrogen is diatomic)*6.023*10^23 atoms =6.022*10^24 Hydrogen atoms. **Sometimes, students will calculate for all the atoms and will include oxygen, be careful to read the question properly.

Subsequently, one may also ask, how many atoms are in 2.00 moles of h2o?

1 water molecule = 2 Hydrogen atoms + 1 oxygen atom. So, 1 mole H2O = 1.2044×10^24 hydrogen atoms. Therefore 2 mole H2O will have 2.4088×10^24 hydrogen atoms.

How many atoms of hydrogen are there in 18g of water?

This means that 18 g of HO has HO molecules. Since each HO molecules have 2 hydrogen atoms, there are a total of hydrogen atoms.

39 Related Question Answers Found

How big is a mole?

On average, moles grow to 4.4 to 6.25 inches (11.3 to 15.9 centimeters) long from snout to rump. Their tails add 1 to 1.6 inches (2.5 to 4 cm) of length. They typically weigh 2.5 to 4.5 ounces (72 to 128 grams), according to the Mammal Society. The American species is a little on the larger side.

How many moles are in water?

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.

How many molecules are in a mole?

Avogadro's number is a very important relationship to remember: 1 mole = 6.022×1023 6.022 × 10 23 atoms, molecules, protons, etc. To convert from moles to atoms, multiply the molar amount by Avogadro's number. To convert from atoms to moles, divide the atom amount by Avogadro's number (or multiply by its reciprocal).

How many milliliters are in a mole?

How many mole/litre in 1 mol/mL? The answer is 1000. We assume you are converting between mole/litre and mole/milliliter. You can view more details on each measurement unit: mole/litre or mol/mL The SI derived unit for amount-of-substance concentration is the mole/cubic meter.

Who discovered the mole?


Amadeo Avogadro

How many grams are in a mole?

We assume you are converting between moles In and gram. You can view more details on each measurement unit: molecular weight of In or grams The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles In, or 114.818 grams.

How do I calculate moles?

Use the molecular formula to find the molar mass; to obtain the number of moles, divide the mass of compound by the molar mass of the compound expressed in grams.

How many atoms are in a mole of hydrogen?

As you can see from its molecular formula, there are two Hydrogen atoms in a molecule of Hydrogen. In one mole of Hydrogen gas,there would be6. 02×10^23molecules. In every molecule, there are two atoms, so the number of atoms in 1 mol of hydrogen would be (6.02×10^23)×2=12.04×10^23 atoms.

How many moles are in 5.9 g of NaCl?

We assume you are converting between grams NaCl and mole. You can view more details on each measurement unit: molecular weight of NaCl or mol This compound is also known as Sodium Chloride. The SI base unit for amount of substance is the mole. 1 grams NaCl is equal to 0.017110756386119 mole.

How many formula units of NaCl are in a mole of nacl?


*1 mole of sodium chloride contains 6.02 x 1023 NaCl formula units.

How many moles are in 100.0 g water?

How many grams Water in 1 mol? The answer is 18.01528. We assume you are converting between grams Water and mole. You can view more details on each measurement unit: molecular weight of Water or mol The molecular formula for Water is H2O.

How many atoms are in 3 moles of h2o?

If you have a compound like H2O, then: 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 moles are 102 grams of h2o?

You can view more details on each measurement unit: molecular weight of H2O or grams This compound is also known as Water or Dihydrogen Monoxide. 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 atoms are in a mole of al2o3?

Percent composition by element
Element Symbol # of Atoms
Aluminium Al 2
Oxygen O 3

How many atoms are in a mole of oxygen?


A mole of oxygen molecules contains 2 moles of oxygen atoms. For elements that exist as molecules, it is best to explicitly state whether molecules or atoms are meant. Thus "1 mole of oxygen molecules" means 6.022 x 1023 O2 molecules, or 2 x 6.022 x 1023 O atoms; "1 mole of oxygen atoms" means 6.022 x 1023 O atoms.

How many moles are in 15 grams of lithium?

1 Answer. Approx 52 moles.