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A flask containing 450mL of 0.500MHBr was accidentally knocked to the floor. Explain how many grams of potassium carbonate are needed to neutralize the acid according to the subsequent equation?
2HBr + K2CO3 ---> 2KBr + CO2 + H2O
calculate the external pressure that must be applied to seawater, 1.14 M total ion concentration at 10 degrees celcius if the maximum concentration allowed in the product water is 166 mg/L
Propanoic acid, HC3H5O2, ionizes in water. A 0.496 g sample of sodium propanoate, NaC3H5O2 (molar mass: 96.07 g/mole) is added to a 50.0 mL sample of a 0.265 M solution of propanoic acid. Assuming that no change in the volume of the solution occur..
If silica gel is used for the absorbent what has moved more a polar or nonpolar compound
What is the balanced, complete net ionic, and net ionic equation for AgNO3 + KIO3
What will the new volume of the gas be if the temperature is increased to 150C and the pressure decreased to 0.95 atm?
A compound contains only carbon, hydrogen, and oxygen. Combustion of 10.68 mg of the compound yields 16.01 mg CO2 and 4.37 mg H20.
the freezing point of the solution is lowered by 5.10 °C. The freezing point and Kf constant for cyclohexane can be found here. Calculate the molar mass of quinine.
What are he experimental conditions of T and P that will be used to calculate the mass of air in the flask? B) Calculate the density of air at the experimental conditons identified in part A
Calculate the binding energy for Cf-253 if one atom of this nuclide has an atomic mass of 253.08417. Express your answer in units of picojoules/nucleus where 1 picojoule = 1x10-12 joule
A bottle of vinegar is labeled 5.0% acetic acid. If the bottle contains 240.0ml of acetic acid, how many grams of acetic acid are contained in the bottle?
What is the chemical definition of a buffer solution? Give an example. 2. The Ka of benzoic acid C7H5O2H, IS 6.5X10^-5. What is the buffer range?
A sample of c3h8 has 6.56 x 10^24 H atoms. How many carbon atoms does the sample contain. what is the total mass of the sample
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