If 30.0 mmol HCl(g) is added to 1.00 L of a buffer that is 0.340 M NH₃(aq) and 0.290 M NH₄Cl(aq), what are the final concentrations of NH₃(aq) and NH₄Cl(aq), respectively? Assume no volume change. A) 0.310 M and 0.320 M B) 0.310 M and 0.290 M C) 0.370 M and 0.290 M D) 0.370 M and 0.320 M

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Quizplus · Accepted Answer

The correct answer is A because the reaction between HCl and NH3 will consume some of the NH3 and produce NH4Cl. The final concentrations of NH3 and NH4Cl can be calculated using the Henderson-Hasselbalch equation.

If 300 Mmol HCl(g) Is Added to 1