4.2032355g are there in 21.3 moles of [tex]BaCO_3[/tex].
What are moles?
A mole is defined as 6.02214076 × [tex]10^{23}[/tex] of some chemical unit, be it atoms, molecules, ions, or others. The mole is a convenient unit to use because of the great number of atoms, molecules, or others in any substance.
Mass of [tex]CaCO_3[/tex] = mole x molar mass
= 21.3 mol x 197.335 g/mol
=4.2032355g
Hence, 4.2032355g are there in 21.3 moles of [tex]BaCO_3[/tex].
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