What is the mass associated with #"20 million water molecules?"#

1 Answer
Jun 26, 2017

Answer:

Well #"Avogadro's number"# of water molecules has a mass of #18.01*g#.......

Explanation:

And #"Avogadro's number"-=6.022xx10^23*mol^-1#

And thus the mass of #20xx10^6*"water molecules"#

#-=(20xx10^6*"water molecules"xx18.01*g*mol^-1)/(6.022xx10^23*"water molecules"*mol^-1)#

#=6xx10^-16*g#.........or #1/8xx1/5xx1/32*"sweet F....... A..."#

And no balance could measure this........