chemistry
the molar solubility of PbS, in a 0.150 M ammonium sulfide (NH4)2S solution is? The Ksp for PbS= 3.2E-28.
chemistry
calculate the pH of a 1.94M solution of nitrous acid (HNO2 - ka = 4.5E-4).
chemistry
the activation energy is 31.7kj/mol. if the reaction rate is 7.4E-2 at 35.0 degrees c, what is the reaction rate constant at -55.0 degrees c.
chemistry
for a given reaction, the activation ener
chemistry
I am doing a boiling point problem and dont know the value of i for the equation delta T = i(kb)(m) solution contains 45.0g caffeine in 25.0 g benzene.
chemistry HELP
laboratoories order hydrochloric acid as a concentrated solution (e.g. 36% W/V). what initial volume of concentrated laboratory hydrochloric acid should be diluted to prepare 5.00L of a 0.12 mol/L solution for an experiment? plz can someone show me how to do it step by step .....
chemistry need help plzzz tomorrow is a TEST!!!
phosphoric acid is the active ingredient in many commercial rust-removing solution.calculate the volume of concentrated phosphoric acid (14.6 mol/L)that must be diluted to prepare 500mL of a 1.25 mol/L solution. how can i calulate the volume cocentration for this question.... ...
art
no he is a composer
Chem, LAST ONE PLEASE HELP!
Even the correct formula to use would be a HUGE help!
Chem, LAST ONE PLEASE HELP!
consider the reaction: CO(aq) + Cl2 (aq) --> COCl2 (aq). Calculate Delta G at non standard conditions. T = 298.15K. Concentration of COCl2 is reduced to 0.01832 M while the concentrations of CO and Cl2 remain 1M. Delta G rxn = -67.4 kj.
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