Answer:
0.42 moles Na₂O
Explanation:
Molarity: 1.2 M
Volume (mL): 350 mL
Volume (L): 0.35 L
350 mL / 1,000 mL = 0.35 L Na₂O
Molarity (M) = moles / liters (L)
1.2 M Na₂O = ? moles / 0.35 L Na₂O
(1.2 M Na₂O) x (0.35 L Na₂O) = ? moles
? = 0.42 moles Na₂O
