What mass in grams of CHOH (MM = 32.04 g/mol) would need to be added to 200.1 g of water in order to lower the

What mass in grams of CH₃OH (MM = 32.04 g/mol) would need to be added to 200.1 g of water in order to lower the freezing point of water by 12.0 °C? (Kf for water is 1.86 °C/m)