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Unformatted text preview: It is reversible. C. DELIQUESCENCE AND EFFLORESCENCE Initial Final Observations Calculations Na2CO3 * 10 H2O 43.562g 43.643g same Efflorescence KA1(SO4)2 * 12 H2O 43.804g 63.706g same Efflorescence CaCl2 50.392g 50.447g Slowly Deliquescence Liquidizing CuSO 43.309g 43.351g Blur clor Deliquescence CoCl2 66.011g 66.135g Thicker Deliquescence More Purple D. PER CENT WATER IN A HYDRATE Mass of crucible and cover 127.868g Mass of crucible, cover, and solid hydrate 128.868g Mass of crucible cover, and residue 128.468g CALCULATIONS AND RESULTS Mass of solid hydrate 1.000g Mass of residue 3) – 1)= .6g Mass of H2O lost 2) – 3)= .4g Mass of H2O in the unknown hydrate 4) / 1.000 40% Unknown no. 1...
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This note was uploaded on 09/15/2009 for the course CH 1213 taught by Professor Xia during the Fall '07 term at Mississippi State.
- Fall '07