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The enthalpy change for the reaction below at 25oC is -1,850 kJ (per mole of C9H20). What is the internal energy change for the reaction at 25oC? 9 CO(g) + 19 H2(g) --> C9H20(l) + 9 H2O(l)
Use a temp-composition diagram to explain why fractional distallation of 2 components is more easily accomplished if the components have boiling points
A buffer solution contains 0.15 mol of propionic acid (C2H5COOH) and 0.28 mol of sodium propionate (C2H5COONa) in 1.50 L. 1.) What is the pH of this buffer?
An aqueous solution of unoxygenated hemoglobin containing 5 g of protein (M= 64000 g/mol) in the 100cm3 of solution is placed in an insulated vessel.
what is the concentration ratio of the free (and potentially toxic) Pb2+ (aq) in the blood to the much less toxic Pb 2+ - EDTA complex?
The molecular formula is at C6H12O. What is the structure?, In the IR there is a peak at: 2960, 2930, and 2860 (CH stretch), a small peak at 2720, and a strong peak at 1725(carbonyl stretch C=O)
An airplane is pressurized to 650 mmHg. If air is 21% oxygen, what is the partial pressure of oxygen on the plane?
The half-equivalence point of a titration occurs half way to the end point, where half of the analyte has reacted to form its conjugate, and the other half still remains unreacted.
Give the products (if any) expected from the treatment of 2-methyl-2-pentene with ozone followed by aqueous hydrogen peroxide. Do not draw any byproducts.
what is the molar solubility of magnesium hydroxide? what is the solubility product, ksp, for magnesium hydroxide? Express the Ksp with the correct number of significant figures.
convert back to molarity. And since it is a strong acid, you would just take the -log(KOH or OH-) then subtract this number from 14. From this I get 11.85, however the answer is 10.98. Can somebody tell me where I'm going wrong in detail?
A 500mL solution contains 1.68g NH3 and 4.05g (NH4)2SO4. How many mL of 12M HCl is needed to change the pH to 9.00?
Nitrogen and oxygen gases react to form dinitrogen trioxide gas. 2 N2(g) + 3 O2(g) -> 2 N2O3(g) At a certain temperature and pressure 4.2 L of N2 reacts with 6.3 L of O2.
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