Question

Two 1-L beakers, A and B, each containing a different aqueous solution of glucose (a nonvolatile sugar with MW = 180.16 g/mol) are placed together in a box, which is then sealed. The temperature remains constant at 20 °C. Initially, there is 690 mL of solution in A and 180 mL of solution in B. As the solutions stand in the sealed box, their volumes change slowly for a while. When they stop changing, beaker A contains 450 mL and beaker B contains 420 mL. It is then determined that the solution in A is 1.87 M in glucose and has a density of 1.12 g mL- 1. (a) What is the molar concentration of glucose in the solution in beaker B at the end? M (b) Calculate the concentration of glucose in the solution in A at the start. M (c) Calculate the concentration of the glucose in the solution in B at the start. M (d) The vapor pressure of pure water at 20 °C is 17.5 torr. What is the pressure of water vapor in the box at the end, after the volumes have stopped changing?

Name: two 1 l beakers a and b each containing a different aqueous solution of glucose a nonvolatile sugar with mw 18016 gmol are placed together in a box which is then sealed the temperature remains constan
Uploaded: 2022-02-28T22:25:49-08:00
Duration: 1 min 41 s
Channel: Dj Tan
Description: two 1 l beakers a and b each containing a different aqueous solution of glucose a nonvolatile sugar with mw 18016 gmol are placed together in a box which is then sealed the temperature remains constan

          Two 1-L beakers, A and B, each containing a different aqueous
solution of glucose (a nonvolatile sugar with MW = 180.16 g/mol)
are placed together in a box, which is then sealed. The temperature
remains constant at 20 °C. Initially, there is 690 mL of solution
in A and 180 mL of solution in B. As the solutions stand in the
sealed box, their volumes change slowly for a while. When they stop
changing, beaker A contains 450 mL and beaker B contains 420 mL. It
is then determined that the solution in A is 1.87 M in glucose and
has a density of 1.12 g mL-
1. (a) What is the molar concentration of glucose in the
solution in beaker B at the end? M
(b) Calculate the concentration of glucose in the solution in A
at the start. M
(c) Calculate the concentration of the glucose in the solution
in B at the start. M
(d) The vapor pressure of pure water at 20 °C is 17.5 torr. What
is the pressure of water vapor in the box at the end, after the
volumes have stopped changing?

Added by Nicole W.

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