Typical blood serum NaCl concentation is 0.154M, which meansthat the concentrati

Question

Typical blood serum NaCl concentation is 0.154M, which meansthat the concentration of sodium ion is also 0.154M. a) What is the concentration of sodium ion in mEq/L? b) How would you prepare 1.00 L of an isotonic NaCl solutionfrom solid NaCl? c) You need 1000mL of 0.154 M NaCl, but the only solutionavailable is 1.50 M NaCl. How many of this stock solution will youmeasure out to make your solution? (C1V1=C2V2) d) How much water will you add to get a total volume of1000mL? Typical blood serum NaCl concentation is 0.154M, which meansthat the concentration of sodium ion is also 0.154M. a) What is the concentration of sodium ion in mEq/L? b) How would you prepare 1.00 L of an isotonic NaCl solutionfrom solid NaCl? c) You need 1000mL of 0.154 M NaCl, but the only solutionavailable is 1.50 M NaCl. How many of this stock solution will youmeasure out to make your solution? (C1V1=C2V2) d) How much water will you add to get a total volume of1000mL?

Explanation / Answer

a) concentration of sodium ion in mEq /L  is154mEq/L because for sodium ion equvalent weight is equals tomolecular weight. b) By adding equal amount NaCl to one liter waterisotonic sollution can be prepared. c) Formula: MiVi = MfVf                    Mi= 1.50M       and Mf =0.154M                     Vi =?                    Vf = 1000mL                      Vi = (0.154M*1000mL)/ 1.50M                              = 102.67mL d) Water must be added = 1000mL -102.67mL                                         =897.33mL                                           

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