In the laboratory a student combines 36.0 mL of a 0.215 M sodium iodide solution

Question

In the laboratory a student combines 36.0 mL of a 0.215 M sodium iodide solution with 14.1 mL of a 0.548 M copper(II) iodide solution. What is the final concentration of iodide anion? M In the laboratory a student combines 43.5 mL of a 0.413 M cobalt (II) fluoride solution with 26.7 mL of a 0.314 M cobalt (II) bromide solution What is the final concentration of cobalt (II) cation? In the laboratory a student combines 34.2 mL of a 0.134 M potassium bromide solution with 20.0 mL of a 0.462 M sodium bromide solution. What is the final concentration of bromide anion? M

Explanation / Answer

1.

The molarity of Br- ion is 0.25 M

2.

the molarity of Co+2 ion is 0.37 M

3.

The molarity of I- ion is 0.46 M

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