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When adjusted for any changes in delta H and delta S with temperature, the standard free energy change delta G note at 2400 K is equal to 1.22*10^5 J/mol . Calculate the equilibrium constant at 2400 K
The rate of disappearance of HBr in the gas phase reaction 2HBr (g) → H2 (g) + Br2 (g)
3.5 g of a hydrocarbon fuel is burned in a vessel that contains 250. grams of water initially at 25.00 C. After the combustion, the temperature of the water is 26.55 C. How much heat is evolved per gram of fuel burned?
What is the boiing point for each compound?
Consider a different titrant for this exercise. Suppose Ca(OH)2 were used as the titrant, instead of NaOH. This will make the titrant twice as concentrated in hydroxide ion. The analyte will still be HC2H3O2.
The next three (3) problems deal with the titration of 461 mL of 0.501 M carbonic acid (H2CO3) (Ka1 = 4.3 x 10-7, Ka2 = 5.6 x 10-11) with 1.1 M NaOH. What is the pH of the solution at the 2nd equivalence point
What mass of precipitate forms when 157.5 mL of 0.749 M NaOH is added to 517 mL of a solution that contains 10.9 g aluminum sulfate per liter
A sample of a dish from an archaeological dig gave 18 500 disintegrations per gram of carbon per day. A 1.00-g sample of carbon from a modern source gave 22 080 disintegrations per day.
After a disturbance, the system regains equilibrium with a total pressure of 2.0atm. What is the partial pressure of A at the new equilibrium
Calculate the pH of a solution prepared by diluting 2.5 mL of 1M acetic acid up to a final volume of 100 mL (pka 4.76)
one of the lines in the emission spectrum of sodim has a wavelength of 590 nm. what is the frequeuncy of this line?
An experiment shows that a 115 -,mL gas sample has a mass of 0.170 g at a pressure of 711 mm; Hg and a temperature of 33Celcius. What is the molar mass?
silica gel columns having smaller particle size procedure more effective chromatographic separations
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