How many moles are in 98.3 formula units of aluminum hydroxide, #"Al"("OH")_3# ?

1 Answer
Brightna H. · Stefan V.
Feb 16, 2018

#1.63 xx 10^-22# #"moles"#

Explanation:

For converting molecules to moles, use Avogadro's constant: #6.02 xx 10^23# #"f units/mol"#

#"98.3 f units"/ (6.02 xx 10^23"f units/mol") = 1.63 xx 10^-22# #"mol"#

Note: #1.63# is rounded to 3 sig figs... use the calculator; also, remember to label!

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