A Sample of Sodium Carbonate Is Treated with 50

question 8

Multiple Choice

A sample of sodium carbonate is treated with 50.0 mL of 0.345 M HCl.The excess hydrochloric acid is titrated with 15.9 mL of 0.155 M NaOH.Calculate the mass of the sodium carbonate sample. Na₂CO₃(s) + 2 HCl(aq) → 2 NaCl(aq) + H₂O(l) + CO₂(g)
HCl(aq) + NaOH(aq) → NaCl(aq) + H₂O(l)

• A)0.784 g
• B)1.04 g
• C)1.57 g
• D)2.09 g
• E)3.13 g

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