Posted by Kate on Tuesday, April 22, 2008 at 1:59pm.
Convert 275 g NaCl to mols.
Convert mols NaCl to mols Cl2 using the coefficients in the balanced equation.
Use PV = nRT to solve for V of Cl2 at the stated conditions.
Okay...
1) 275 g NaCl ----> 4.71 mol NaCl
2) Next, 4.71 mol NaCl * 1Cl2/2 NaCl = 2.36 mol Cl
3) V= nRT/P
v= (2.36 mol)(0.0821 L atm/K Mol)(313K)/687mmHg = 0.0883 L
Final answer: v = 0.0883 L
All of your calculations and numbers look good until the last step. Pressure in PV = nRT must go in in units of atmospheres. Change by 687/760 = ?? atm.
So, if I convert mmHg to atm I get .904 atm. When I plug that into the equation, the final answer is 67.1 L?
right
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