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point of 7.0 kg of ice to -4.4°C? In ice-cream making, the temperature of the ingredients is kept below 0.0°C in an ice-salt bath.
(a) Assuming that NaCl dissolves completely and forms an ideal solution, what mass of it is needed to lower the melting point of 7.0 kg of ice to -4.4°C? ______________ g
(b) Given the same assumptions as in part (a), what mass of CaCl2 is needed? _______________ g
(a) Assuming that NaCl dissolves completely and forms an ideal solution, what mass of it is needed to lower the melting point of 7.0 kg of ice to -4.4°C? ______________ g
(b) Given the same assumptions as in part (a), what mass of CaCl2 is needed? _______________ g