What is the percentage of water in the hydrate [tex]CoCl_2 \cdot 6H_2O[/tex]?
Answer (3)
You need the periodic table. Get the molar mass for each one. C is 12, O is 16, 2Cl is 71 (35.45 x 2), H2O is 18 x 6 of them is 108. Add them up and you get 207 g/mol. What is the percentage of water? Since you have 6 water molecules, and it is equal to 108, you simply divide 108 and 207. You get a decimal. Multiply it by 100%. You'll get 52.17%.
Answer: 45.4% ;
The percentage of water in the hydrate CoCl2·6H2O is approximately 45.4%. This is calculated by determining the total molar mass of the compound and the mass of the water within it, then finding the mass percent. Following the calculations using the atomic masses of the involved elements confirms this result.
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