Human blood serum contains about 3.4g/L of sodium ions. What is the molar concentration of Na in blood serum?

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Human blood serum contains about 3.4g/L of sodium ions. What is the molar concentration of Na in blood serum?

plz help, stuck on chemistry question.

2007-01-20 10:25:12 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry

2 answers

simply divide the given by the atomic weight of Na and there you go!

3.4 g/L (1/23 g/mol) =0.148 mols of Na/liter of blood serum.

2007-01-20 10:37:05 · answer #1 · answered by neng m 1 · 0⤊ 0⤋

Usually Serumm Sodium is not expressed in grams per litre.It is expressed in mili equivalents-135 m.eq/litre. 23 gms of Sodium in1000 ml is 1.0M -So 3.4/23 is the molarity of your solution- 0.148M

2007-01-20 11:55:08 · answer #2 · answered by ssrvj 7 · 0⤊ 0⤋