Open Question
The concentration of Cl⁻ ion in blood is approximately 100 mEq/L. How many milliliters of blood would be needed to obtain 1.0 g of Cl⁻ ions?
9. Solutions
Equivalents
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An intravenous saline solution contains 140 mEq/L of Na+. How many mEq of Na+ are present in 750 mL of the solution?
A
525 mEq
B
5.36 mEq
C
105 mEq
D
187 mEq
Verified step by step guidance1
Understand that mEq/L stands for milliequivalents per liter, which is a measure of the concentration of ions in a solution.
Identify the given concentration of Na+ ions in the solution, which is 140 mEq/L.
Recognize that you need to find the total milliequivalents of Na+ in a specific volume of the solution, which is 750 mL.
Convert the volume from milliliters to liters, since the concentration is given in mEq/L. Remember that 1 L = 1000 mL, so 750 mL is equivalent to 0.750 L.
Multiply the concentration (140 mEq/L) by the volume in liters (0.750 L) to find the total milliequivalents of Na+ in the 750 mL of solution.
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