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Benzoate
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Homework Statement
What are q and w (in kJ) for the reaction of 22 g of Na(s) and 82 g of Cl2(g) to produce NaCl at 1 atm and 298 K.
Homework Equations
w=-delta(n(g))* R*T where delta(n(g)) = the moles of gas created during the reaction
The Attempt at a Solution
First, I wrote the chemical reaction for Na and Cl2
2Na(s) +Cl2(g)=> 2NaCl
delta(n(g))=0-1 = -1
82 g Cl2*(1 mol Cl2/70.98 g Cl2)*(-1 mol gas/1mol Cl2)= -1.16
delta n(g) =-1.16
w=-delta(n(g))*RT=(-1.16)(8.314)(298 K)=2.87 kJ
But that's not the answer according to the back of my textbook.