how many moles?

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how many moles are there in a 0.45 % NaCl solution?

2007-01-21 08:50:23 · 2 answers · asked by ABC 4 in Science & Mathematics ➔ Chemistry

ok, it is just a problem that says
what's the osmolarity of 0.45% NaCl saline solution. Assume that NaCl particle dissociate into 2 ions

2007-01-21 09:00:17 · update #1

0.077moles perlitre----0.45 %=4.5gm/liter--Na(23)+cl#%.45)=58.45 mol.wt ---4.5/58.45=0.077

2007-01-21 09:03:04 · answer #1 · answered by ssrvj 7 · 0⤊ 0⤋

State your basis and i will give you an answer.

2007-01-21 16:58:39 · answer #2 · answered by Scott S 4 · 0⤊ 0⤋