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2007-03-13 11:34:07 · 6 answers · asked by Blesson 2 in Science & Mathematics ➔ Chemistry
Molarity
2007-03-13 11:38:15 · answer #1 · answered by Lilly26 3 · 0⤊ 0⤋
The M means "molar"...and it's a way to express the concentration of a compound in solution:
A "Mole" is Avagadro's number of atoms or ions, and a "Molar solution" contains that number of molecules dissolved in 1 litre of solution.
so a 0.5M solution of NaCl would be a solution containing half as much per litre:
[(6.02 x 10^23 Na ions and 6.02 x 10^23)/2] per liter
Though this might be clearer!......:
http://richardbowles.tripod.com/chemistry/moles/moles.htm
2007-03-13 18:44:23 · answer #2 · answered by Anonymous · 0⤊ 0⤋
M stands for Molarity which would be the grams of NaCl equal to the molecular weight divided by two per liter in this case.
2007-03-13 18:39:51 · answer #3 · answered by Mikee 3 · 0⤊ 0⤋
M stands for "molar" solution. This means that there is .5 moles of NaCl in solution.
2007-03-13 18:38:13 · answer #4 · answered by mattmedfet 3 · 0⤊ 0⤋
M stands for "molar" solution.
2007-03-13 18:54:29 · answer #5 · answered by Anonymous · 0⤊ 0⤋
It means molar. That means that for every liter of solution, there is 0.5 moles of sodium ion and chlorine ion present.
2007-03-13 18:38:06 · answer #6 · answered by The Tridentine Avenger 3 · 0⤊ 0⤋