What is an atomic mass of NaOH ?

1 Answer
anor277
Jun 25, 2018

Well, what is the molar mass of sodium hydroxide....?

Explanation:

The molar mass of sodium hydroxide is #40.00*g*mol^-1#...

But this, BY DEFINITION, specifies the mass of #"Avogadro's number"# formula units of sodium hydroxide....i.e. #6.022xx10^23*"formula units of sodium hydroxide per mole."#

And thus the mass of ONE formula unit of sodium hydroxide is given by the quotient....

#"mass"_"one formula unit of NaOH"=(40.00*g*mol^-1)/(6.022xx10^23*mol^-1)#

#=6.641xx10^-23*g#...

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