Recent content by Integral0

...um yes, there is a war . . . its called the Holy War and its been raging for thousands of years. Not to mention the War on Terrorism.

Wilson's mistake, Bush's . . . ? George Washington, a founder of the United States of America, set forth in his farewell address that the 13 colonies should not take part in any squabbles that involved the colonies participation in political wars with other nations (not in its hemisphere)...

My regards to those individuals and the people of spain who have been deeply affected my this heinous attack.

EUREKA! I GOT IT :) :) 2 (C + O2 -> CO2) change in Enthalpy = 2(-394) kj/mol 2CO2 -> O2 + 2CO change in Enthalpy = 2(239.3) kj/mol = 2C + O2 -> 2CO change in Enthalpy = 221 kj/mol + or - 1 kj/mol :D ;) :)

The enthalpy of combustion of solid carbon to form carbon dioxide is -393.7 kj/mol carbon, and the enthalpy of combustion of carbon monoxide to form carbon dioxide is -283.3 kj/mol CO. Use these data to calculate change of enthalpy for the reaction 2C(s) + O2(g) -> 2CO(g)...

RE actually this is the reaction I meant CO + O2 -> CO2 (Unbalanced) sorry it was a mistake originally

4CO + 2CO2 -> 4CO2 this is Balanced when I simplify, the simplification doesn't work 2CO + O2 -> 2CO2 3 moles of O2 does not equal 4 Moles of O2 where's my error?

The Mean will stay approximately the same no matter how large the size of the sample. However, the standard deviation will decrease if the sample gets larger ------------------------ thanks for answering upsidedown;

The mean probability of 100 observations is .0422. If you are not given the data for a sample size of 200, how do you find the mean probability of this data using the mean probability you found from .0422? thanks

RE answered . . . thanks Generalchemtutor via www.chemicalforums.com

RE; How did you formulate this, GeneralChemtutor? Does that mean .824 H20 solvent = .824 NaCl solute? ---------------------------------------------------------- If this is true . . . doesn't it need to be 2(.824)? B/c ionic solute's dissolve . . . like this -> NaCl -> 1 mol Na + 1 mol...

Here is the question: A solution of sodium chloride in water has a vapor pressure of 19.6 torr at 25 degrees celsius. What is the mole fraction of NaCl in this solution? The vapor pressure of pure water is 23.8 torr at 25 degrees celsius...

If a 2.0 L container of oxygen at 3 Atmospheres of pressure is poured into a 5.0 L container of Hydrogen at 3 atmospheres of pressure. What is the partial pressure of oxygen in new container? What is the new total pressure in the container? I'm not sure how to start this . . . if you could...

both subjects "bite" hard. Physics is easier in high school than chem is . . . but otherwise I would consider them both hard in college.

My humble apologies to those people involved in the "Saddam Capture" discussion. I am also sorry for creating havoc with my posts and opinions. "United we stand . . . " ---------------------------------------------------------------------- Although I do not agree with Adam's opinion, I...