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Barbituric acid, HC4H3N2O3.... Its pKa is 4.01. What is the [H+] and pH of a 0.044 M solution of H-Bar?
Reaction of AsCl3 with Cl2 at low temperature yields a product, believed to be AsCl5, which shows Raman bands at 437,369, 295, 220,213, and 3cm-1. Detailed analysis of the 369 and 295 cm-1 bands show them to arise from totally symmetric modes.
1. what structural characteristics of polystyrene polyacrylonitrile and polytetrafluoroethylene have an effect on the
Calculate the pH of a buffer solution made by adding 10.0 g of anhydrous sodium acetate (NaC2H3O2) to 100mL of 0.100 M acetic acid (HC2H3O2).
when sulfuric acid is a component of polluted air it chemically attacks statues memorials and monuments made from
Predict the relative reaction times with ethanolic AgNO3 for the following compounds and rank them from fastest to slowest: 2-chloro-2-butene, 1-chloro-2-butene, 2-chlorobutane.
A 4.50-g sample is burned, and 2.70 g of CO2(g) is produced. What was the mass percentage of the table salt in the mixture?
What is the change in internal energy (in J) of a system that absorbs 0.588 kJ of heat from its surroundings and has 0.219 kcal of work done on it?
A certain first-order reaction has a half life of 20.0 minutes. The time (in minutes) required for this reaction to be 87.5% complete is: A) 60 B) 65 C) 70 D) 75
If the mass of helium-3 is 5.0064 x 10^-24 grams and the mass of a deuteron is 3.34370 x 10^-24 grams. Calculate the energy released by this reaction using Einstein's equation.
A mixture of NaCl and NaBr has a mass of 2.00 and is found to contain 0.78 of Na. What is the Mass of NaBr in the mixture.
how many grams of urea must be added to enough water to obtain 115 ml of a solution with an osmotic pressure of 2.7 atm at 35 degrees celsius
If 40.0 g acetylene is allowed to react with 40.0 g oxygen, how many grams CO2 are formed.
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