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A solution of sulphide (Ct = 10-6 M) is blended into a 0.4 M sodium chloride solution in a closed container. Plot a log C-pH diagram for the system, including activity coefficients in the construction.
Determine the equilibrium constant for the gas phase T= 298k , 1 atm total pressure , mixture of hydrogen , iodine and hydrogen iodide.
What is the value of the equilibrium constant for the reaction between I2 (s) and Br- (aq) at 25 degrees celcius?
What are some of the general properties that distinguish metals from ceramics and polymers?
You are the Science Officer on the Starship Enterprise and you come across a new planet. You find that no light with wavelength less than about 650 nm reaches the surface of the planet.
Does caffeine or chlorophyll have a higher Rf value? Briefly explain why by discussing the intermolecular forces present in the molecules
calculate avaerage rate of decomposition of H2O2 between 0 & 4.32 x 10^4 s.
pure nitrogen can be prepared when an aqueous solution of ammonium nitrite decomposes to form water vapor and nitrogen gas. How many grams of ammonium nitrate must have reacted if 3.75dm3 of nitrogen gas was collected over water at 26C and 97.8 kP..
The major product of the acid-catalyzed dehydration of heopentyl(2,2-dimethyl-1-propanol) has a different carbon skeleton than that of the starting alcohol
calculate the individual masses of C, H, and O in the 0.7549 g sample.
If 80 {rm J} of heat are added to a pure gold coin with a mass of 13 {rm g}, what is its temperature change? Specific heat capacity of gold is 0.128 rm J/g ^circ C.
Assume that the products are carbon dioxide and water. Answer the following question: If ONE mole of iso-octane is burned, how many mols of water are formed
A 15.0 mL sample of an acid requires 37.3 mL of 0.303N NaOH for neutralization. Calculate the normality of the acid.
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