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Consider the titration of a 25.0 mL sample of 0.100 M acetic acid using 0.100 M NaOH as the titrant. The value of the equilibrium constant for HC2H3O is Ka= 1.8 x10^ -5. Calculate the pH of the acid solution before any NaOH has been added.
How many liters of the antifreeze ethylene glycol [CH2(OH)CH2(OH)] would you add to a car radiator containing 6.50 L of water if the coldest winter temperature in your area is -20°C?
Describe how a distillation works: how can you separate out things with it? which of the functional groups could you easily react via organic reactions to create different compounds
What are the empirical formula and the molecular formula of the compound.
the solubility of carbon dioxide in h2o at the temperature of twenty five degree celsius and pressure of co2 1 atm
the ha monoprotic acid is dissolved in h2o calculate ka and pka for the acid ha if the equilibrium concentrations of
calculate the work done in joules when 50.4 g tin is dissolved in excess acid at 1.04 atm and 20 degrees celsius.
What is the difference between Kc and Qc? How can you use Kc and Qc to predict the direction of equilibrium mixture to move?
To this vessel 8.6787g of Ne are added in such a way that no butane escapes. The total pressure of the vessel (at the same temperature) is 1420 torr. Calculate the volume of the vessel and the mass of the butane.
a manufacturer of bicycles has 4819 wheels 2305 frames and 2250 handlebars. how many wheels are left over? how many
What is the composition of anti-dust chalk? What are differences between normal blackboard chalk and anti-dust chalk? What made anti-dust chalk anti-dust? Explain in details.
find the vapor pressure of water solution in which the molefraction of HgCl2 is 0.163 at 25 degrees celcius.
The heats of reaction for the following combustion reactions were determined experimentally
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