Help needed please
Posted: Fri May 06, 2022 7:49 am
Help needed please
You have an aqueous solution of NaCl that has a freezing point of -4.95°C. What mass (in grams) of NaCl must be added to 1000 g of this solution to lower the freezing point to -12.00°C? (Assume a van't Hoff factor of 1.9 for NaCl). (Kf for water is 1.86°C.kg/mol). 1 4 7 +/- 2 5 8 g 3 6 9 0 X C x 100
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