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Answer to Question #182115 in General Chemistry for Lauren Barad
Question #182115
How many grams of water can be frozen at 0oC with the removal of -129.8 J? (Specific Heat = 4.2 𝐽/𝑔o𝐶, Enthalpy of fusion 6010 J/mol, Enthalpy of vaporization = 40700 J/mol)
Expert's answer
Number of moles frogen
=
6010 / 129.8
= 46.3 mol .
Mass of H2O = ( 46.3 × 18 ) g =
832 . 1538
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