A student mixed 5.3 g of sodium carbonate and 6.0 g of ethanoic acid in a conical flask.
After experiment, he weighed the flask again. The weight of the residue in the flask was
only 9.1 g. He approached the teacher who guided him to carry the experiment in a closed
flask with a cork. There was no difference in weight of the flask before and after the
experiment.
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Answer:
abcd
Explanation:
only in 9.1 g.he approached the teacher
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