How do you convert 100 g of #CuSO_4 * 3H_2O# to moles?

1 Answer
Lucy
May 6, 2018

#0.468n#

Explanation:

#"number of moles"="mass"/"molar mass"#

the mass in this case: 100g

molar mass: (looking at the periodic table because molar mass means the total mass of the atomic mass of all your elements)
=63.55+32.07+16x4+3(1.008x2+16)
=213.668

Therefore, #"number of moles"=100/213.668=0.468n#

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