jennetkara jennetkara

11-01-2017
Mathematics

contestada

Determine the number of moles of compound in each of the following compounds?
4.50g H2O

471.6g Ba(OH)2
129.68g Fe3(PO4)2

Respuesta :

vanitassily vanitassily

11-01-2017

Use the Chem Periodic table to find the molar mass.
moles = mass / molar mass

H2O = 18.....................................4.50/18 = 0.25 mol

Ba(OH)2 = 171.327.....................471.6/171.327 = 2.75 mol

Fe3(PO4)2 = 357.482524.......129.68/357.482524 = 0.36 mol

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