Molecular Weight of NaOH

Molecular Weight of NaOH Reviewed by Diet and Health Team on . This Healthy Diet About Molecular Weight of NaOH

The molecular formula of NaOH is Sodium hydroxide or also known as caustic soda or lye. The molecular formula of NaOH is a… more »

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The molecular formula of NaOH is Sodium hydroxide or also known as caustic soda or lye. The molecular formula of NaOH is a highly caustic metallic base. Sodium hydroxide is a white solid available as a 50% saturated solution, flakes, pellets and granules. The molecular formula of NaOH or also called Sodium hydroxide can soluble in methanol, water and ethanol. This alkali is readily absorbs carbon dioxide and moisture in air and it is deliquescent. The appearance of NaOH is opaque crystals, white and waxy. NaOH is odorless, so it not has any odor.

When work with NaOH, you should protect your body. Protect your hand with gloves. Drops of NaOH solution can decompose lipids and proteins in living tissues, skin and eyes like other corrosive acids. If it contacts eyes, it can cause permanent blindness. Eye protection, rubber gloves and safety clothing should always be used when working with NaOH.


In many industries, the Sodium hydroxide is used. Mostly, it is used in strong chemical base industries. The manufactures of these industries are including drain cleaner, drinking water, paper and pulp, detergents, textiles, and soaps. In the winemaking industry, the Sodium hydroxide or NaOH is a very useful compound. NaOH is used to test certain qualities of wine. In some straighten hair and relaxers are used sodium hydroxide. But, these relaxers are used mostly by professional because of the high intensity of chemical burns and the incidence.

Sodium Hydroxide Molecular Weight

Sodium Hydroxide Molecular Weight


The molecular weight of NaOH is 39.997 g/mol. With this molecular weight, you can calculate the molarity of NaOH. How to calculate the molarities’ NaOH with the molecular weight of NaOH?

  1. The first of this step is you should know the molecular weight of NaOH. But, if you don’t know the molecular weight of NaOH, you can calculate it. See the resources, such as periodic table of the chemical elements to figure out the atomic weight. When you know the weight of all atomic weight of NaOH, you can calculate it into the molecular weight of NaOH. According to the periodic table, the atomic weight is (H=1, O=16, Na=23). So, it will be, M (NaOH) = M (Na) + M (O) + M (H). And then, we add the number of atomic weight into it. M (NaOH) = 23 + 16 + 1 = 40 g/mole. So, the molecular weight of NaOH is 40 g/mole.
  2. Molecular Weight of HCL

    Molecular Weight of HCL

  3. Use the formula to calculate the amount of the NaOH in moles. The formula is Amount (in moles) = mass of NaOH/ molecular weight of NaOH. For the example, you have mass of NaOH in 0.5 g and the molecular mass of NaOH is 40 g/mole. So, it will be 0.5 / 40 = 0.0125 moles.
  4. The amount should to convert into millimoles. The formula is Amount (In millimoles) = 1000 x Amount of NaOH in moles. For the example, 1000 x 0.0125 moles = 12.5 millimoles.
  5. Molar Mass of NaOH

    Molar Mass of NaOH

  6. Use the formula to calculate the concentration in millimolars. The formula is Amount of NaOH in millimoles / Volume of NaOH solution in liters = Molarity in millimolars. For the examples, you have volume of NaOH solution is 0.5 liters. So, it would be 12.5 millimoles / 0.5 liters = Molarity of NaOH. The molarity of NaOH would be 25 millimolars.

 

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Molecular Weight of NaOH Picture Gallery

Density of NaOH   Formula Mass of NaOH   Molar Mass of NaOH   Molecular Weight of HCL   Sodium Hydroxide Molecular Weight   
 
 

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