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High levels of ozone (O3) make rubber deteriorate, green plants turn brown, and cause people to have difficulty breathing. Calculate delta G at 298 K for the formation of 1 mole of O3 from O2 in urban smog, where [O2]=0.210 atm and[O3]=5.00x10^-7 atm
what volume of 0.100 M NaOH is required to precipitate all of the nickel (ll) ions from 150.0 mL of a 0.162 M solution of Ni(NO3)2
What is the formula of the zinc sulfate hydrate? name this compound
A sample of vapor has the composition 50% A and 50% B. What is the composition of the boiling liquid that produced this vapor
Chlorine forms a number of oxides with the following oxidation numbers: +1,+3,+4,+6 &+7.Write formula for each of these compounds.
For the reaction: 2NO(g)+2H2(g)-->2H2O(g) at equilibrium in a 4.0L container at 25oC. Suppose 2.5 mol of each component initally is put into the container. At equilibrium 2.5 mol of NO is present. What is Kc for the reaction at the temperature?
Consider the titration of 43.2mL of .240M HF with .220M NaOH. Calculate the pH at halfway to the equivalence point. Ka = 3.5 * 10^4
Which metal is associated with the synthesis of cyclopropanes?
the reaction is spontaneous below a certain temperature. Calculate that temperature. values are for delta H and delta S respectively.
For carbon tetrachloride, the boiling point constant is 5.03°C · kg/mol, and the boiling point of pure carbon tetrachloride is 76.50°C.
When heated to 350 degrees C at 0.950 atm, the ammonium nitrate decomposes to produce nitrogen, water, and oxygen gases; 2NH4NO3(s) delta--->2N2(g)+4H2O(g)+O2(g):
the freezing point of the solution is lowered by 4.10 °C. The freezing point and Kf constant for cyclohexane can be found here. Calculate the molar mass of quinine
Supposed you have a beaker of water that is being heated on a hot plate. If you are studying the amount of heat that is requred to change the water temperature by a certin amount. What is a reasonable choice for the system and surroundings?
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