Question

An aqueous solution of CaF2 has a freezing point of -6.24 °C. Assuming total dissociation of the salt, determine the (a) concentration of the aqueous solution; (b) boiling point of the solution; (c) mass of CaF2 needed to be added to 100.0 g of water to make the solution. (molar mass of CaF2 = 78.08 g/mol; For water: Kf = 1.86 °C/m; Kb = 0.512 °C/m)

Name: an aqueous solution of caf2 has a freezing point of 624 c assuming total dissociation of the salt determine the a concentration of the aqueous solution b boiling point of the solution c mass 47363
Uploaded: 2021-12-24T19:05:40-08:00
Duration: 3 min 46 s
Channel: Alkendra Singh
Description: an aqueous solution of caf2 has a freezing point of 624 c assuming total dissociation of the salt determine the a concentration of the aqueous solution b boiling point of the solution c mass 47363

          An aqueous solution of CaF2 has a freezing point of -6.24 °C. Assuming total dissociation of the salt, determine the (a) concentration of the aqueous solution; (b) boiling point of the solution; (c) mass of CaF2 needed to be added to 100.0 g of water to make the solution. (molar mass of CaF2 = 78.08 g/mol; For water: Kf = 1.86 °C/m; Kb = 0.512 °C/m)

Added by Tammy K.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Alkendra Singh

12/24/2021

Step 1

Given: ΔTF = 6.24°C, KF = 1.86°C/m, I = 3 ΔTF = I * KF * m 6.24 = 3 * 1.86 * m m = 6.24 / 5.58 m = 1.11 mol/kg Show more…

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An aqueous solution of CaF2 has a freezing point of -6.24 °C. Assuming total dissociation of the salt, determine the (a) concentration of the aqueous solution; (b) boiling point of the solution; (c) mass of CaF2 needed to be added to 100.0 g of water to make the solution. (molar mass of CaF2 = 78.08 g/mol; For water: Kf = 1.86 °C/m; Kb = 0.512 °C/m)