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Two beakers are placed in a small closed container at 25 °C. One contains 461 mL

ID: 1080180 • Letter: T

Question

Two beakers are placed in a small closed container at 25 °C. One contains 461 mL of a 0.112 M aqueous solution of BaCl2; the second contains 293 mL of a 0.271 M aqueous solution of BaCl2. Small amounts of water evaporate from both solutions. As time passes, the volume of solution in the second beaker gradually................... a) increases or b) decreases

and that in the first gradually.................a) increases or b) decreases

If we wait long enough, what will the final volumes and concentrations be?

461 mL

0.112 M

293 mL

0.271 M

? mL

? M

? mL

? M

First beaker Second beaker Initial

461 mL

0.112 M

293 mL

0.271 M

Final

? mL

? M

? mL

? M

Explanation / Answer

Two beakers are placed in a small closed container at 25 °C. One contains 461 mL