Lactated Ringer's solution 109 mEq/L of Cl^-. What is the mass of the chloride ion in 225 mL of this solution? A)24.5 g B)0.0245 g C)0.869 g D)0.109 g

Question

Quizplus · Accepted Answer

- To calculate the mass of chloride ions, we need to first find out the concentration of chloride ions in the solution.
- Lactated Ringer's solution contains 109 mEq/L of chloride ions, which can be converted to mg/mL by multiplying with the molar mass of chloride ions (35.45 g/mol) and dividing by 1000:

109 mEq/L x 35.45 g/mol / 1000 = 3.86 mg/mL

- Now, we can use the concentration and volume of the solution to calculate the mass of chloride ions:

225 mL x 3.86 mg/mL = 867.75 mg

- However, the question asks for the mass of chloride ion (singular), so we need to divide this value by the number of chloride ions in one formula unit, which is 1:

867.75 mg / 1 = 0.86775 g, which is approximately 0.869 g

- Therefore, the answer is C.

Lactated Ringer's Solution 109 MEq/L of Cl-

Lactated Ringer's Solution 109 MEq/L of Cl^-