12/01/12

What is the value of deltaE in kilojoules if the reaction is carried out at a constant pressure of 28.0 atom and the volume change is -2.35 L?
The reaction between bleach and ammonia to yield chlorine gas has a deltaH= -422 kJ What is the value of deltaE in kilojoules if the reaction is carried out at a constant pressure of 28.0 atom and... more
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12/01/12

gas stoichiometry question
A foul smelling gas produced by the reaction of HCL and Na2S: 2HCl + Na2S --> 2NaCl + H2S is collected in and a 1.00 L sample was found.  How many moles were found in the sample knowing the... more
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11/27/12

Which of the following is NOT a unit factor related to a 5.00% aqueous solution of lithium chloride?
1. 5.00 g LiCl/ 95.0 g water 2. 100 g solution/ 5.00 g LiCl 3. 5.00 g LiCl/ 95.0 g solution 4. 95.0 g water/ 5.00 g LiCl 5. 95.0 g water/ 100 g solution I have no idea, please tell me your... more
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11/15/12

If NI3 explodes according to the following equation, how many moles of NI3 are required to fill a 3L container at STP?
2NI3(solid) --> N2(gas) + 3I2(solid) I am unsure how to solve this problem.  If I use the ideal gas equation (without referencing the chemical equation given), I get 0.134 mol NI3.  However, I... more
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