How to Make a Saturated Solution of Sodium Bicarbonate

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Sodium bicarbonate, NaHCO3, is a white inorganic salt commonly known as baking soda. The saturated solution of sodium bicarbonate may be used as a cleaning agent or to neutralise acid solutions. The saturated solution contains the maximum amount of the salt that can be dissolved at the given temperature.

Skill level:

Things you need

  • Beaker
  • Scale
  • Coffee filter
  • Funnel
  • Table spoon

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  1. 1

    Multiply 0.15 by the volume of water to calculate the amount of sodium bicarbonate that should be used. For example, for 240ml of water, 36g (240 x 0.15) of the salt is needed.

  2. 2

    Weigh the calculate amount of sodium bicarbonate on the scale.

  3. 3

    Pour the water in the beaker and add the sodium bicarbonate weighed in Step 2.

  4. 4

    Swirl the beaker for 5 minutes to dissolve the sodium bicarbonate. You can also use a spoon to mix the solution. Note that some salt should remain undissolved. It is normal and indicates the saturated solution.

  5. 5

    Insert a regular coffee filter into a funnel and slowly pour the solution through to separate out the undissolved sodium bicarbonate. Ensure that the filtered saturated solution is collected into another jar.

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