Please show process not just the answer
2007-12-09 12:06:14 · 5 answers · asked by jamin7_cda 1 in Science & Mathematics ➔ Chemistry
You must know the density of water is about 1g/ml.
.05 ml=Xgrams when 18g is one mole
Since you have .05 ml= about 0.05 g
divided by18g = number of moles
=2.78*10^-3 moles multiply by 6.02*10^23 =number of molecules
2007-12-09 12:14:58 · answer #1 · answered by Anonymous · 2⤊ 0⤋
density is variable depending on temperature. just before freezing its at its most denseness, then suddenly expands(because as the ice crystals form they become infiltrated with air) to become the least dense. Cold water = more molocules, hot=less. Solve this problem, then you can begin.
2007-12-09 20:17:29 · answer #2 · answered by Anonymous · 0⤊ 1⤋
How pure is the Water!
2007-12-09 20:11:12 · answer #3 · answered by Sly Fox [King of Fools] 6 · 0⤊ 1⤋
0.05 ml = 0.05 grams
Divide this by 18.0 grams /mol to get moles.
Multiply by avogadro's number (6.02, etc) to get # of molecules.
2007-12-09 20:09:05 · answer #4 · answered by reb1240 7 · 1⤊ 0⤋
Over a million
2007-12-09 20:08:12 · answer #5 · answered by hi 2 · 0⤊ 3⤋