Answer
The answer is: the mass of carbon dioxide given off during the reaction is 6,6 g .
Work Step by Step
1- Step one: Apply the law of conservation of mass for this chemical reaction:
m (of sodium carbonate) + m (of acetic acid) = m (of carbon dioxide) + m (of left content)
2- Step two: Replace the mass of sodium carbonate, mass acetic acid and mass of left content in the above-written law of conservation of mass:
15.9 g + 20.0 g = m (of carbon dioxide) + 29.3 g
3- Step three: find the mass of carbon dioxide
35.9 g = m (of carbon dioxide) + 29.3 g
35.9 g - 29.3 g = m (of carbon dioxide)
m (of carbon dioxide) = 6.6 g
