Exercise on Calculating the Formula Weight Molecules: Solutions

Calculate the Formula Weight of the Following Molecules

Glocose (C₆H₁₂O₆)
⁶₁₂C

¹_1.01H

⁸₁₆O

Solution: Molecular Weight = (6 × 12) + (12 × 1) + (6 × 16) = 180 amu

Iron (II) Carbonate FeCO₃
²⁶_55.8Fe

⁶₁₂C

⁸₁₆O

Solution: Molecular Weight = (1 × 55.8) + (1 × 12) + (3 × 16) = 115.8 amu

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