A solution contains NaOH, Na2CO3, and NaHCO3, either alone or in a permissible combination. A 50 mL portion required 42.0 mL of 0.10 M HCl to reach bromocresol green end point. A second 50 mL portion required 16.0 mL of the HCL to reach phenolphthalein end point Determine the composition and

Principles of Modern Chemistry
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ISBN:9781305079113
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Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter11: Solutions
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A solution contains NaOH, Na₂CO3, and NaHCO3, either alone or in a
permissible combination. A 50 mL portion required 42.0 mL of 0.10 M HCl to
reach bromocresol green end point. A second 50 mL portion required 16.0 mL
of the HCI to reach phenolphthalein end point. Determine the composition and
the molar solute concentrations of the original solution.
Transcribed Image Text:A solution contains NaOH, Na₂CO3, and NaHCO3, either alone or in a permissible combination. A 50 mL portion required 42.0 mL of 0.10 M HCl to reach bromocresol green end point. A second 50 mL portion required 16.0 mL of the HCI to reach phenolphthalein end point. Determine the composition and the molar solute concentrations of the original solution.
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