The laboratory technician accidentally mixed NaHCO3 with BaCl22H2O instead of KCl when preparing unknown mixtures for this experiment.
A. How would this mistake affect the calculated percentage of NaHCO3 in the mixture? Justify your answer with an explanation.
B. Is it still possible to determine the percentage of NaHCO3 in the mixture given the error made by the lab technician? Justify your answer with an explanation.