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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 the 20.0 mL of HNO3 have been added.
a rigid container is filled with liquid acetone at 20 degrees C and 1 bar. through heat transfer at constant volume, a pressure of 100 bar is generated
Find the amount of thermal energy produced in kilojoules when 18.9 g of water is heated from 16°C to 98.0°C.
sample containing 4.80 g O2 of gas has a volume of 15.0 L. Pressure and temperature remain constant. What is the new voume if 0.500 mole O2 gas is added?
a total alkalinity of 0.003 equivalents/Liter (the former determined by use of a PH meter, and the latter determined by titration with standardized acid to a methyl orange endpoint). Calculate [CO2]
What is the pressure exerted in the closed end of an apparatus if the atmospheric pressure is 720 torr and the height of the water column is 22.3 cm?
What is the theoretical yield of hydrazine in grams, prepared from the reaction of 100.0 mL of 0.690 M NH3
The emulsifying agent from hand cream, a salt, is prepared from two chemicals. Write the structure of stearic acid.
What is the predicted pH of the following: 0.1M HCl, 0.01M HCl, 0.001M HCl, 0.1M HC2H202, 0.1 M HC2H3O2, 0.1 M NH4Cl, deonized water
A 10.0 gram piece of metal is placed in an insulated calorimeter containing 250.0 g of water initially at 20.0°C. If the final temperature of the mixture is 25.0°C, what is the heat change of water
How are the princible of Le chatelier's used to increase the percentage yield in the production of ammonia in the haber process?
The pH would decrease slightly. The pH would decrease dramatically. The pH would increase slightly. The pH would increase dramatically. The pH would not change at all.
its molar mass is 71.61 g/mol, how many grams of this compound must you burn to release 866.80 kJ of heat?
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