What is the aproximate number of water molecules in one drop of water? (Since drop size can vary...let's say it's from a standard eye dropper.) Does anyone know the estimated quantity?
2006-11-17 20:33:27 · 8 answers · asked by Smart Dude 6 in Science & Mathematics ➔ Chemistry
a drop of water weights about 0.05 g
The molecular weight of water is 18 (H2 o = 2*1+16)
so the number of moles of water in a drop is 0.05/18 =1.67 10^21 molecules
2006-11-17 21:03:23 · answer #1 · answered by maussy 7 · 5⤊ 2⤋
Everyone is close but no cigar... Avogadro's number is useful but not the entire answer.
First I would try to figure out how much water a drop is. Take a dropper and count how many drops fill up a teaspoon. Then find out how many teaspoons in an once. Then convert 1 once to grams. Then convert grams to moles, then moles to molecules using Avogadros number at the end. It will take a little bit of a calculation but it is possible.
Good Luck
2006-11-25 04:42:18 · answer #2 · answered by Anonymous · 2⤊ 2⤋
For the best answers, search on this site https://shorturl.im/awyUu
1 drop x (0.055 ml / drop) x (1 g / ml) x (1 mole / 18.0 g) x (6.022 x 10^23 molecules / mole) = 1.84 x 10^21 molecules
2016-04-04 00:59:41 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Equivalent to avogadro's number i.e., 6.2 X 10 power 23.
2006-11-17 20:42:20 · answer #4 · answered by Vishaal 2 · 1⤊ 2⤋
i think u have to know d mass first b4 finding the no of molecules using avogadro's law
2006-11-17 20:49:33 · answer #5 · answered by tomzy 2 · 1⤊ 3⤋
confusing stuff. lookup into yahoo. that will help!
2015-04-27 17:02:35 · answer #6 · answered by Shelia 2 · 0⤊ 0⤋
its very simple ,, but i think you must remember avogardo number to solve that
2006-11-17 20:45:48 · answer #7 · answered by source_of_love_69 3 · 1⤊ 4⤋
have no idea, but I'd say billions
2006-11-17 20:37:04 · answer #8 · answered by bprice215 5 · 1⤊ 5⤋