What is the mass of 0.25 mol of NaOH? (Relative formula mass = 40)

Answer and explanation

Correct answer: B. 10 g

  1. Step 1: Mass .
  2. Step 2: g.
Answer
10 g.
Why not the others: 0.006 g: it divides moles by . 160 g: it divides by moles. 10.25 g: it adds the number of moles to the mass.

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