How many moles are present in 34 grams of #Cu(OH)_2#?

2 Answers
Feb 18, 2016

Answer:

Approx. #1/3# of a mole.

Explanation:

#"Moles of"# # Cu(OH)_2# #=# #(34*cancelg)/(97.6*cancelg*mol^-1)# #=# #??" moles"#.

How many formula units of #Cu(OH)_2# are in this quantity?

Feb 18, 2016

Answer:

There are 0.348 moles in 34 grams of #Cu(OH)_2#

Explanation:

Number of moles = #Mass//Molar Mass#
Molar mass of #Cu(OH)_2#
Cu - 63.55
O - 2(16)
H - 2(1.01)
= 97.57g/mol
Thus
#34//97.57#
#= 0.348#
Thus, there are 0.348 moles in 34 grams of #Cu(OH)_2#