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Aspirin is a weak monoprotic acid with a ka of 3.27 X 104. Assume you dissolve 0.650 g of aspirin in 200 mL of water as well as titrated it with 0.100 M NaOH. Give the following
Initial pH
Volume to reach equivalence point
pH at equivalence point
volume to reach half-equivalence point
pH at half-equivalence point
volume to achieve a pH of 9
The temperature of the calorimeter rises from 22.5 to 25.7 degrees C. Find the nutritional caloric content (Cal/g) of peanut butter. BASED on your calculation, how many Calories are in on serving of peanut butter
find the mass of the substance and the volume of a gas in a reaction.1.ammonium nitrate is a common ingredient in
Ethanol has a molar mass of 46.08g/mol and a density of 0.789g/mL. It is a clear, colorless liquid that dissolves readily in water. How many milliliters of ethanol would be needed to make 1.20L of a 2.75M solution?
Determine how many grams of methane is required to form 43.0 grams of CHCl3?
what amount of heat is produced? The specific heat of aluminum is 0.90J/g C?
Calculate the work done (in J) on the surrounding atmosphere (1atm pressure, 25.5 oC ) by the evolution of hydrogen in the subsequent reaction. State any assumptions you have made.
The decomposition of NOBr is studied manometrically because the number of moles of gas changes; it cannot be studied colorimetrically because both NOBr and Br2 are reddish-brown.
consider the titration of 100.0 ml of 0.200 m acetic acid ka 1.8 10-5 by 0.100 m koh. calculate the ph of the
A food chemist determines that an increase in temperature from 50 to 60 degrees Celcius increases the initial rate of this reaction by a factor of 2.12 (all other initial conditions were kept constant). What is the activation barrier for this este..
A cylinder contains a mixture of hydrogen and chlorine molecules. Compare without doing any calculations
Calculate the pressure difference between CH4 and an ideal gas under these conditions. The van der Waals constants for CH 4 are a=2.300L2⋅atm/mol2 and b=0.0430 L/mol.
Calculate the molarity and the molality of an NH solution made up of 28.0 g of NH in 70.0 g of water. The density of the solution is 0.982 g.
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