In ice-cream making, the temperature of the ingredients is kept below 0.0°C in an ice-salt bath. Assuming that NaCl dissolves completely and forms an ideal solution, what mass of it is needed to lower the melting point of 7.1 kg of ice to −5.0°C?(Kf of water is 1.86°C/m.)
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In ice-cream making, the temperature of the ingredients is kept below 0.0°C in an ice-salt bath....