What mass of ethylene glycol (molar mass 62.0 g $mol^{−1}$) must be added to 5.50 kg of water to lower the freezing point of water from 0$^{\large\circ}$C to − 10.0$^{\large\circ}$C? ($K_f$ for water = 1.86 K kg $mol^{−1}$)

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