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Desiccants (drying agents) can often be regenerated by heating. A desiccant that is commonly regenerated is
CaSO4?2H2O:
CaSO4?.2H2O(s) → CaSO4(s) + 2H2O(g)
?Ho = 25.1 kJ/mol; ?So = 69.3 J/molK
Regeneration is carried out at 250 oC.
a) What is the ?Go for this reaction?
Explain heavy water? Ans) Isotopes of H 2 O, D 2 O
The lactone, a cyclic ester, can form an enolate ion, and this ion is alkylated by methyl iodide.
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