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Which of the following aqueous solutions will have the lowest freezing point?
Which of the following aqueous solutions will have the lowest freezing point? (m stands for molality)
a. 0.035 m CH3CH2CH2OH
b. 0.0100 m Li2SO4
c. 0.015 m MgCl2
d. 0.0100 m NaCl
1 Answer
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- skipperLv 75 years ago
ANSWER: (c) 0.015 m MgCl2
0.015 m x 3 (Mg^+2, Cl^-1, Cl^-1) = 0.045 m
(a) 0.035 m x 1 = 0.035 m
(b) 0.010 m x 3 = 0.030 m
(d) 0.010 m x 2 = 0.020 m
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