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Consider the titration of 100.0 mL of 0.100 M H2NNH2 (Kb = 3.0 10-6) by 0.200 M HNO3. Calculate the pH of the resulting solution after 100.0 mL of HNO3 have been added.
At a particular temperature, K 3.75 for the reaction SO2(g) + NO2(g) SO3(g) + NO(g) If all four gases had initial concentrations of 0.800 M
Consider a compound that undergoes sublimation at 125 degrees Celsius and a pressure of one atm. Which of the following could be a heating curve appropriate for heating
Choose any two temperatures and corresponding vapor pressures in the table given, and use those values to calculate ?Hvap for dichloromethane (in kJ/mol).
During a titration, the following data were collected. A 25 mL portion of a solution of an unknown monoprotic acid was titrated with 1.0 M NaOH(aq).
Granite rock has a specific heat capacity of 0.80 J·°C-1·g-1. A 15 g rock was warmed by 202 J of energy from sunlight. What was the increase in temperature of the rock (in °C)?
Determine the heat of formation of sulfuric acid, H2SO4 (l) from the following thermochemical equations: S8(s) + 8 O2(g)-->8SO2(g) H= -2374.6 kJ S8(s) + 12O2(g)-->8SO3(g) H=-3165.8 kJ H2O(l)+SO3(g)-->H2SO4(l) H=-132.3 kJ 2H2(g)+O2(g)-->2H2O(l) H=..
For a solution having 1.00 x 10^-3 equivalents/L total alkalinity (contributions from HCO3-, CO32- and OH-) at [H+] = 4.69 x 10^-11, what is the percentage contribution to alkalinity from CO32-
Draw all possible mesomeric structures of the carbocationic intermediate in the chlorination of benzoic acid. Explain why m-chlorobenzoic acid is the main product
How many constitutionally isomeric monochlorides can be formed on free-radical chlorination of 2,3,3-trimethylpentane? 2,3,3-trimethylpentane + Cl2 Heat
how many milliliters of .1229 M NaOH are needed to completely neutralize 50.00mL of .1012M H2SO4 solution
The concentration of an enzyme within a cell is extremely low relative to other material present, yet functions effectively in its metabolic role.
How many molecules of substance B are produced when 30.0 g of substance A reacts? The molar mass of substance A is 23.5 g/mol. A) Convert the mass of A to moles
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