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A feed stream containing 2.00 mol/min of butane (C4H10), and a feed stream containing 130.0 mol/min of air are fed into a reactor. The butane combusts completely according to the following reaction. 2C4H10 +13O2 --> 8CO2 + 10 H2O Assume that the air is 21.0 mol% O2 and 79.0 mol% N2.
What are the molar balances for each atomic species: C, H, N and O ?
What are the flow rates of (mol CO2/min), (mol H2O/min), (mol N2/min) and (mol O2/min)?
Calculate the mole fraction of the salt in the solution.
Calculate the change in internal energy of the following system: a balloon is cooled by removing 0.654 kJ of heat. It shrinks on cooling, and the atmosphere does 385 J of work on the balloon.
State the chemical composition of the sterol that is present in high levels in most people who belong to the high-risk group. Distinguish between the 'good' and 'bad' forms of this sterol.
A close chemical relative of the banned insecticide DDT is methoxychlor (C16H15Cl3O2). Methoxychlor is currently used as a home insecticide. Calculate the mass percent of oxygen in methoxychlor.
In the preparation of the esters given in this experiment, the reaction product was extracted with 5% sodium bicarbonate solution in the isolation step. Why? What gas was evolved during this washing step? Write a balanced equation for the reaction..
What ions and/or molecules are present in relatively large proportions in a solution of a strong acid HI (aq)?
Calculate brightness of a wavelength undergoing Rayleigh scattering.
Hydrogen gas was cooled from 150C to 50 C. It's new volume is75 mL. What was it's original volume?
The water level in a graduated cylinder initially at 216 rises to 287 after a piece of lead is submerged. What is the mass in grams of the lead?
Consider the following on data on Bell Lake, Based on the Ksp for Al(OH)3 of 1 x 10-33 what are the highest theoretical concentrations of Al3+ at these pH values, in µg /L?
the reaction conditions are influencing the directing effect of the -NH2 group. Explain why this occurs, using both words and structures.
Consider the following standard heats of formation: Standard Heat of formations for the substances:CO2(g) = -393.5 kJ/mol PbO(s) = -151.6 kJ/mol CO(g)
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