Answer:
2.8248 g
Explanation:
First, consider the balanced chemical equation:
Then we calculate the number of moles in 4.11 g of citric acid:
n(citric acid)=
According to the balanced reaction, one mole of citric acid produces 3 moles of carbon dioxide. That's 3 times the number f moles of citric acid. So we will do the same with the available number of moles of citric acid.
so n(carbon dioxide) = 0.0214 mol*3=0.0642 mol
mass(carbon dioxide)= mass*molar mass=0.0642 mol* 44g/mol
= 2.8248 g
Answer:
c. the same as
Explanation:
for a closed system:
⇒ ΔS > 0.....irreversible process
⇒ ΔSrev = ∫ dQ/T
for an irreversible process, ΔS is not the same as in a reversible process, since more than one reversible process is needed for the two ΔS to be equal.
⇒ ΔSirrev = ΔSrev1 + ΔSrev2 + ....
but if the initial and final states are the same, ΔS for an irreversible process can be calculated as if it were a reversible process.
⇒ ΔSirrev = ΔSrev
When the pressure increases, the area decreases.
When the area increases, the pressure decreases.
The one that is not a compound is Cl
