A Solution of 1

question 139

Multiple Choice

A solution of 1.07 g of NH₄Cl (molar mass = 53.5 g/mol) in 100 g of water freezes at - 0.677 ° C. Determine the van't Hoff factor ( i ) for this solution of NH₄Cl given the freezing point depression constant for water (k_f) is 1.86 ° C/m.

• A) 1.000
• B) 2.00
• C) 0.364
• D) 18.2
• E) 1.82

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