Which of the Following Correctly Determines the Formula Mass of Sodium

question 39

Multiple Choice

Which of the following correctly determines the formula mass of sodium sulfate (Na₂SO₄) ?

• A) 7 × (23 amu + 32 amu + 16 amu)
• B) 2 × 23 amu + 4 × (32 amu + 16 amu)
• C) 2 × 23 amu + 32 amu + 4 × 16 amu
• D) 2 × 11 amu + 16 amu + 4 × 8 amu
• E) 2 × 11 amu + 4 × (16 amu + 8 amu)

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