Answered: at a time, the following solutions are…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

One at a time, the following solutions are put across as osmotic membrane from a solution of 0.25M NaCl. In which case will water move through the membrane toward the NaCl solution?

a. 0.25M HF

b. 0.25M CaCl₂

c. 0.15M Co₂(SO₄)₃

d. 0.60M C₆H₁₂O₆

e. 0.30M NaBr

Expert Solution

Step 1

When solvent molecules move from the low concentration solution to the high concentration solution, the phenomenon is known as osmosis. The pressure generated during this process is known as osmotic pressure. Its value depends on the concentration of the solution.

Step 2

When solute particles dissociate into the solution, their number change in the solution. This causes a change in concentration. First, find out the actual concentrations of the solutions.

$H F m o l e c u l e s u n d e r g o e s a s s o c i a t i o n b e c a u s e o f H y d o g e n b o n d i n g, s o i t s a c t u a l c o n c e n t r a t i o n w i l l b e l e s s t h a n 0.25 M . C a C l_{2} \to C a^{+ 2} + 2 C l^{-} t h e c o n c e n t r a t i o n w i l l b e 0.75 M C o_{2} {(S O_{4})}_{3} \to 3 C o^{+ 2} + 2 S O_{4}^{- 2} t h e c o n c e n t r a t i o n w i l l b e 0.75 M C_{6} H_{12} O_{6} u n d e r g o e s n e i t h e r a s s o c i a t i o n o r d i s s o c i a t i o n, t h e c o n c e n t r a t i o n i s 0.60 M N a B r \to N a^{+} + B r^{-} t h e c o n c e n t r a t i o n i s 0.60 M$

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