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What mass of salt (NaCl) should you add to 1.96 L of water in an ice...

What mass of salt (NaCl) should you add to 1.96 L of water in an ice cream maker to make a solution that freezes at -12.0 ∘C ? Assume complete dissociation of the NaCl and density of 1.00 g/mL for water.

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