Preparation of standard solution of sodium carbonate by edurite
Answers
Weigh the sample
Weigh 1.30 g of sodium carbonate on an electronic balance, as accurately as you can. Use a clock glass.
Two places of decimals would be best.
Transfer to beaker
Use a spatula to transfer the sample to a beaker of warm water (100ml).
Rinse the clock glass.
Rinse the remaining grains into the beaker with deionised water.
Rinse the spatula into the beaker also.
All traces must be transferred.
Pour the washings into the volumetric flask.
Pour the washings into the volumetric flask, using a funnel and a glass rod.
Wash the rod as well.
Rinse the beaker several times with deionised water.
Pour these washings into the volumetric flask.
Top up the volumetric flask with deionised water, until just below the graduation mark.
Top up to the graduation mark with a dropper.
Read the bottom of the meniscus at eye level.
Invert and mix to ensure proper mixing of the contents.
Calculations
Number of moles of sodium carbonate