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)

Question

Quizplus · Accepted Answer

The formula for sodium sulfate is Na2SO4. The correct calculation for its formula mass is 2 times the atomic mass of sodium (Na, 23 amu) plus 1 times the atomic mass of sulfur (S, 32 amu) plus 4 times the atomic mass of oxygen (O, 16 amu), which matches option C.

Which of the Following Correctly Determines the Formula Mass of Sodium