Answer :
Answer:
[tex]m_{air}=3.6g[/tex]
Explanation:
Hello,
In this case, given the law of conservation of mass which states that mass cannot be created nor destroyed, since the produced mass of the compound is 15.9 g and the mass of the initial substance is 12.3 g we obtain the mass of air by applying the following equation:
[tex]m_{reactants}=m_{products}\\\\m_{substance}+m_{air}=m_{product}[/tex]
Thus, solving for the mass of air we obtain:
[tex]m_{air}=m_{product}-m_{substance}\\\\m_{air}=15.9g-12.3g\\\\m_{air}=3.6g[/tex]
Regards.