Question

How many moles are in 4.30 × 10^2 g of calcium phosphate (_3 (_4 )2)?
A. 0.721 mole
B. 1.39 mole
C. 1.54 mole
D. 3.18 mole

Answer 1

Answer:

Explanation:

Molar mass of Ca₃(PO₄)₂ = 310 g/mol

now, no. of moles in 4.3 x 10² g of calcium phosphate =$\frac{ 4.3 x 10^2}{310}$ =  1.3876 moles ≅ 1.39 moles

Sorry, didn't calculate, I am just editing it

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