The following data were collected from the gravimetricanalysis of a hydrated sal

Question

The following data were collected from the gravimetricanalysis of a hydrated salt: Mass of crucible and lid (g) - 19.437 Mass of crucible, lid, and hydrated salt (g) - 21.626 Mass of crucible, lid, and anhydrous salt (g) - 21.441 Determine the % water in the hydrated salt.
how to caluclate the average percent of the H2O in th hydrated salt (%H2O)
Snatard Deviation adn %RSD OF H2O  
The following data were collected from the gravimetricanalysis of a hydrated salt: Mass of crucible and lid (g) - 19.437 Mass of crucible, lid, and hydrated salt (g) - 21.626 Mass of crucible, lid, and anhydrous salt (g) - 21.441 Determine the % water in the hydrated salt.
how to caluclate the average percent of the H2O in th hydrated salt (%H2O)
Snatard Deviation adn %RSD OF H2O  

Explanation / Answer

its simple mathematical problem.
mass of the hydrated salt will be 21.626-19.437= 2.189g
mass of anhydrous salt Will be 21.441- 19.437 = 2.004g
mass of the water will be 2.189-2.004 = 0.185
% of water in the substance can be found by dividing it by mass of hydrated salt
i.e (0.185/2.189) x 100= 8.45%

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