# Question - How many atoms are in 10g of h2o?

Answered by: Maria Lee  |  Category: General  |  Last Updated: 07-09-2021  |  Views: 723  |  Total Questions: 14

Assuming the Water is pure, 10g of water contains approximately 3. 33*10^23 water molecules (via conversion to moles of water, and multiplying it by Avagadro's number), multiply this by another 3 (since every water molecule contains 3 atoms, 2 hydrogen and 1 oxygen), leaving us with 10^24 atoms in total. Keeping this in view, how many atoms are there in 65. So one mole of water contains 6. 022×10^23 number of water molecules. We know that every water molecule is made up of two hydrogens and one oxygen which means that every water molecule contains 3 atoms. So, to get number of atoms in 18g of water, we will multiply Avogadro's number by 3. Thus, there are 3. 35 * 10^22 molecules of water in 1 gram. Now, each molecule of water has 2 hydrogen atoms and 1 oxygen atom. This means that there are 3 atoms in each molecule. Likewise, people ask, how many atoms of hydrogen are there in 10. Each molecule of water contains 2 H: then total H-atoms in 10 grams of water = 3. 34 E 23 x 2 = 6. 64 E 23 atoms. 18 gram water means 1 mole H2O. There are 2 hydrogen atoms and 1 oxygen atom in H2O.

### How many molecules are in a gram?

https://www.quora.com/How-do-I-convert-grams-to-molecules

A mass in grams numerically equal to the molecular weight contains one mole of molecules, which is known to be 6. 02 x 10^23 (Avogadro's number). So if you have x grams of a substance, and the molecular weight is y, then the number of moles n = x/y and the number of molecules = n multiplied by Avogadro's number.

### How do I calculate moles?

https://opentextbc.ca/chemistry/chapter/3-1-formula-mass-and-the-mole-concept/

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?

https://courses.lumenlearning.com/boundless-chemistry/chapter/molar-mass/

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).

### Which has highest number of atoms?

Helium has the most number of mol out of all the options and will thus have the highest number of atoms.

### How do you find atoms in grams?

https://sciencing.com/calculate-grams-atomic-mass-units-8755197.html

To calculate the number of atoms in a sample, divide its weight in grams by the amu atomic mass from the periodic table, then multiply the result by Avogadro's number: 6. 02 x 10^23.

### How many atoms are in h2so4?

https://www.quora.com/How-many-atoms-are-present-in-2-0-mol-of-sulfuric-acid

One sulfuric (H2SO4) molecule has 2 hydrogen atoms, 1 sulfur atom, and 4 oxygen atoms. You can also say one mole of sulfuric acid has two mols of hydrogen atoms, 1 mol of sulfur atoms, and 4 moles of oxygen atoms. So in total, we have 7 mols of atoms. But that's in 1 mol of sulfuric acid.

### How many moles are in 5.9 g of NaCl?

https://www.convertunits.com/from/grams+NaCl/to/moles

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 moles of water are there in 18 g of water?

https://brainly.in/question/3044968

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.