How many grams are in 2.3 x 10^-4 moles of ca3(po4)2

Molar mass 

Ca₃(PO₄)₂ = 310 g/mol

1 mole > 310 g
2.3x10⁻⁴ mole > ?

m = 2.3x10⁻⁴ * 310 / 1

m = 0.0713 g 

hope this helps!

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