The formula mass of Potassium Sulphate (K2SO4)

A. 174 amu
B. 174 mol
C. 174g
D. 174g/mol

Why the Formula Mass of Potassium Sulfate is 174?

Potassium sulfate (k2so4).
K(39 mass)
S(32mass)
O(16mass)
39*2+32+16*4=174g

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