Nitric acid, a very important industrial chemical, is made by dissolving the gas nitrogen dioxide (NO2) in water. Calculate the moles of gas produced in 2 L volume container, 736 torr and 50 ºC if the gas behaves as ideal
2 answers
Well the formula you need is (P x V) / T. This means pressure times volume divided by temperature. But, you need to convert your temperature to Kelvins. To do this, simply add 273 to your Celsius. Also, you need to convert torr to atmospheres. 760 torr = 1 atm. So you would have to do have 736/760. Once you do this you will have .9684211 x 2 / 323. This will give you .006 if you round up. However, you MAY OR MAY NOT still need to convert this to moles. If you do, find the molar mass and... well, I'll let you figure that out. This should give you your final answer.
You don't write an equation. The best I can find is that 2NO2 + H2O ==> HNO3 + HNO2; i.e., a mixture of nitric and nitrous acids. And your problem asks for moles of "gas" produced in 2L ...... BUT HNO3 is not a gas. Please clarify the problem and repost. It may be that you only want the mols of NO2 gas under those conditions in which case PV = nRT and solve for n.
2 answers