How many moles of MgSiO3 are in 193g of the compound?

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Tristan Bennett · Answer 1 · 2018-12-28T13:14:24+0000

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)