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Presuming that the dissociation constant of acetic acid is 1.8 x 10-5
What would be the pH of a buffer solution that is 0.5 M in acetic acid and 0.5 M in the acetate anion?
Describe a situation where a substance changed between the solid and liquid states or between liquid and gas states? Can you describe an example of when a substance changed between the gas and solid states? Let's see how many different examples we..
If the pressure exerted by ozone, O3, 3.0x10-3 atm and the temperature is 247 K , how many ozone molecules are in a liter.
An impure sample of potassium hydrogen phthalate, KHP, had a mass of 0.884 g. It was dissolved in water and titrated with 31.5 mL of 0.100 M NaOH solution. Calculate the percent purity of the KHP sample.
suppose that a sample of gas occupies 73 ml of volume at 25c and a pressure of 266 torr. what would be the volume if
A 1.733 g sample of a metal reacts with hydrochloric acid to form a MCl2 type of salt and 380.0 mL of H2 at 20 degrees C and 720 torr pressure. a) Write a balanced net ionic equation for this reaction b) Determine identity of the metal.
What mass of lithium phosphate is needed to prepare 600 ml of a solution having a lithium ion concentration of 0.225 M?
A procedure called coulogravimetric analysis combines a weight determination with a measurement of the quantity of electricity in a controlled-potential electrolysis to analyze bromide-chloride mixtures
What is the pressure of the gas in this mercury manometer if h = 69 mm and atmospheric pressure is 749 mmHg
A compound contains only carbon and nitrogen and is 46.2% carbon by mass. A gaseous sample of the compound has a density of 2.05 g/L at 927 torr and 105 °C
what wavelength of light in nm is absorbed by a ground state hydrogen atom could cause an electron to transition to n=3
The second is defined as the time it takes for 9,192,631,770 wavelenght of a certain transition of the cesium-133 atom to pass a fixed point.
Using the quantities given in the Procedure, calculate the theoretical yields for the mononitration of (a) acetanilide and (b) methyl benzoate. Acetanilide = quantity is .5 g and molar mass 135.17 g/mol. methyl benzoate= quantity is .55g. and mola..
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