Answer :
Molar mass of MgSiO3=24.3+28.1+3(16)=100.4
number of moles in 193 g
=193/100.4
=1.922 mol
=1.92 mol (rounded to 3 significant figures)
number of moles in 193 g
=193/100.4
=1.922 mol
=1.92 mol (rounded to 3 significant figures)