How to Calculate the Mass of Water (H2O): Step-by-Step Guide

Learn how to calculate the mass of H2O by understanding molar mass in this informative guide.

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To find the mass of H2O, calculate the molar mass by adding the atomic masses of 2 hydrogen atoms (1.01 each) and 1 oxygen atom (16.00). This results in a molar mass of 18.02 g/mol. If you have the number of moles of H2O, multiply it by 18.02 to get the mass.**

FAQs & Answers

  1. What is the molar mass of H2O? The molar mass of H2O is 18.02 g/mol, calculated from the atomic masses of 2 hydrogen atoms and 1 oxygen atom.
  2. How do you find the mass of a liquid? To find the mass of a liquid, you can multiply the volume of the liquid by its density.
  3. What is the significance of molar mass in chemistry? Molar mass is vital in stoichiometry calculations, allowing chemists to convert between mass, moles, and molecules.
  4. Can you explain the steps to calculate mass from moles? Yes, to calculate mass from moles, multiply the number of moles by the molar mass of the substance.

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