to make sure that the white powder was all sodium chloride and not mixed with sodium hydrogen carbonate, would you add a little less or a little more hydrochloric acid to the reaction?
1
Expert's answer
2020-01-31T04:34:42-0500
NaHCO3+HCl"\\to" NaCl+H2O+CO2(gas)
If bubbles of the gas (carbon dioxide) intensely evolve during the reaction, then the sample is containing NaHCO3
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