What is the ka of the conjugate acid of the unknown base
0.300 moles of an unknown monobasic weak acid are added to 1.20 L of water. The resulting solution has a pH of 8.800. What is the Ka of the conjugate acid of the unknown base? Assume no change in volume.
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Water with a density of 62.4 lbm/ft3 enters a 36" diameter cylindrical container at 85 gpm. How much water will exit the tank during this filling process?
A doctor wants to estimate the HDL cholesterol of all 20- to 29-year-old females. How many subjects are needed to estimate the HDL cholesterol within 3 points with 99% confidence assuming α= 18.9? Suppose the doctor would be content
The frequency of the siren sound she hears is 8.5 hz, and as soon as the car passes her by, the frequency of the siren sound she hears becomes 75 hz. Knowing that sound travels through air with the speed of 340 m/s, find the following:
How much smaller will your error be if you use the regression equation than if you merely used the overall mean creativity score as the predicted score for all participants?
A light bulb manufacturer guarantees that the mean life of a certain type of light bulb is at least 875 hours .A random sample of 58 light bulbs has a mean life of 852 hours with a standard deviation of 95 hours. Do you have enough evidence to rej
Thiamine hydrochloride(C12H18ON4SCl2) is awater soluble form of thiamine (vitamin B1; Ka=3.37 X 10^-7). How many grams of the hydrochloride must be dissolved in 10.00 mL ofwater to give a pH of 3.20?
Although we usually think of substances as "burning" only in oxygengas, the process of rapid oxidation to produce a flame may alsotake place in other strongly oxidizing gases.
The amount by which the first liquid will fall on the right-hand leg. If density1 is known but density2 is unknown, could the apparatus be used for determing the density of the second liquid?
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