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Law of conservation of mass: When 4.2 g...

Law of conservation of mass: When `4.2 g` of sodioum hydrogen carbone `(NaHCO_(3))` is added to a solution of acertc aacid `(CH_(3) COOH)` weighting `10.0 g` then `2.2 g` of carbon diosxed `(CO_(2))` is released into the atmosphere and the residue ledft weighs `12.0 g`. Show that these observation are in agreement with the law of conservation of mass.
Strategy: Find the sum total of mass of recants before the reaction and sum total of mass of products after the reaction.

Text Solution

Verified by Experts

`NaHCO_(3)+CH_(3)COOHrarrCH_(3)COONa+H_(2)O+CO_(2)`
Initial mass `= 4.2 + 10 = 14.2`
Final mass `12 + 2.2 = 14.2`
Thus during the course of reaction law of conservation of mass is obeyed .
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