2006-10-14 08:55:11 · 0 answers · asked by Zepueen 1 in Science & Mathematics ➔ Biology
it depends on the amount of water. Molarity is mols/L
2006-10-14 08:57:12 · answer #1 · answered by leon27607 3 · 0⤊ 33⤋
Molarity Of Water
2016-10-06 01:21:59 · answer #2 · answered by geissel 4 · 0⤊ 1⤋
The term "molarity" generally pertains to solutions. It is an expression of the concentration of a solute in a solvent. Pure water is only a solvent. It contains no solutes. Therefore the concept of molarity, as the term is usually used, does not apply.
However, if you are asking how many moles of water are equivalent to one liter, that would be easy enough to calculate. The molecular weight of water is just about 18, so 18 grams of water equals 1 mole. Therefore a liter of water, having a mass of 1000 g, would be 55.555 moles of water (1000/18). I don't believe it would be proper to refer to this number as "molarity" however.
2006-10-14 21:17:01 · answer #3 · answered by PaulCyp 7 · 7⤊ 1⤋
Hmm, doesn't molarity compare a substance with water, in terms of concentration - so you can't have molarity of water?
2006-10-14 08:57:13 · answer #4 · answered by Older&Wiser 5 · 0⤊ 7⤋
I think it's -1x10-26th power. I vaguely remember something in Chemistry class called, "Mole Day". KCAL mole is the measurement of how many molecules there are in a mL of water. Also a relationship between how much energy is needed to heat a ml of water one degree. Also known as a calorie.
2006-10-14 08:58:30 · answer #5 · answered by Fun and Games 4 · 0⤊ 10⤋
We first note that a mole of water molecules has a mass of about 18 g.
So, [H2O] = number of moles in a litre of water = (1000 g) / (18 g) = 55.
We say that pure water is at 55 M concentration, in pure water.
2006-10-14 08:57:27 · answer #6 · answered by Anonymous · 16⤊ 0⤋