Concentration of Chloride Ions

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Question 1-1.86

7 points

What is the concentration of chloride ion in a solution made by mixing 165.0 mL of 2.00 M barium chloride and 250.0 mL of 0.450 M sodium chloride?

Chloride ion concentration =

M

Hint 1

Concentration is expressed in units of molarity. The units of molarity are g/L mol/L mol/kg solvent % g/mol Keep up the good work! Top of page

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Hint 2

How many moles of chloride ions do you have after the barium chloride and sodium chloride are mixed? .773 mol Cl- ions in the mixed solution Use this information to help you solve the problem! Top of page

More information on this hint

How many moles of Cl- are present in the BaCl2 solution? .660 mol Cl- Good job! Top of page

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How many moles of Cl- are present in the NaCl solution? .113 mol Cl- Grrreat! Top of page

Hint 3

What is the volume after the barium chloride and sodium chloride solutions are mixed? Volume of mixed solution = * .415 L Good! You’re on your way to solving this problem! * Note : Significant figures are incorrect for answers marked with an asterisk. Top of page

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