Hypothesize what your observations will be for the reactions of hydrogen carbonate withthe acids in Part D. Include your rationale.Part D:Part D: Reactions with NaHCO3 and Na2C2O413. Place a small quantity (about the size of an almond or a bean) of sodium hydrogen carbonate (i.e., sodiumbicarbonate) into an evaporating dish. Place the same amount of sodium oxalate into a separate dish.14. Add one dropper’s worth* of 1.0 M H2SO4 to one of the dishes. Note any visible changes (bubbling, smokeformation, color changes, etc.) that occur to the dish’s contents. When the reaction has finished, add adropper of 1.0 M H2SO4 to the other dish and again observe.15. *The dropper does not have to be full, just what one fully squeezed bulb picks up16. Clean the dishes out and set them up as you did before with solid NaHCO3 and Na2C2O4. Add acid to thesalts as you did before, but use 1.0 M HCl instead of H2SO4.

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Asked Oct 16, 2019
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Hypothesize what your observations will be for the reactions of hydrogen carbonate with
the acids in Part D. Include your rationale.

Part D:

Part D: Reactions with NaHCO3 and Na2C2O4
13. Place a small quantity (about the size of an almond or a bean) of sodium hydrogen carbonate (i.e., sodium
bicarbonate) into an evaporating dish. Place the same amount of sodium oxalate into a separate dish.
14. Add one dropper’s worth* of 1.0 M H2SO4 to one of the dishes. Note any visible changes (bubbling, smoke
formation, color changes, etc.) that occur to the dish’s contents. When the reaction has finished, add a
dropper of 1.0 M H2SO4 to the other dish and again observe.
15. *The dropper does not have to be full, just what one fully squeezed bulb picks up
16. Clean the dishes out and set them up as you did before with solid NaHCO3 and Na2C2O4. Add acid to the
salts as you did before, but use 1.0 M HCl instead of H2SO4.

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Expert Answer

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13. When NaHCO placed open it decomposes to sodium carbonate which is hygroscopic in
nature. The Na2C2O4 placed in separate evaporating dish absorb water from its suroundings
since it is hygroscopic in nature
14. When a drop of H2SO4 is added to dish containing NaHCO, shows effervescence, bubbling
which is actually evolution of CO2. Then, addition of H2SO4 to dish containing Na2C204 shows
colorless, odorless gas evolving which turns lime water milky
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13. When NaHCO placed open it decomposes to sodium carbonate which is hygroscopic in nature. The Na2C2O4 placed in separate evaporating dish absorb water from its suroundings since it is hygroscopic in nature 14. When a drop of H2SO4 is added to dish containing NaHCO, shows effervescence, bubbling which is actually evolution of CO2. Then, addition of H2SO4 to dish containing Na2C204 shows colorless, odorless gas evolving which turns lime water milky

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