Question

What is the mass of:
5.00 x 10^-2 mol CuCl2

Answer 1

  The mass  of 5.00 x 10⁻²  mol   CuCl₂ is   6.725 grams

calculation

mass  =  moles  x  molar  mass

from  periodic table the molar mass  of CuCl₂  = 63.5 + (35.5 x2) =134.5  g/mol

moles is therefore= 5.00 x 10⁻²   x 134.5 g/mol  =6.725  grams