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How do I calculate the theoretical pH of a solution made of 25 mL 0.10 M acetic acid and 25 mL 0.10 M sodium acetate
Oxygen and sulfur combine to form a variety of differenet sulfur oxides. Some are stable molecules and some, including S2O2 and S2O3, decompose when they are heated
A sample of gold weighs 1.2 oz. The sample is pounded into a thin rectangular sheet with an area of 400. sq. ft. The density of gold is 19.3 grams per cm3. What is the thickness of the foil in centimeters
what is the voltage after the addition of the following volume of NaI solution? The reduction potential for the saturated calomel electrode is E = 0.241 V.
the set of transitions where the electron falls from a higher level to the nf = 4 state is called the Pickering series, an important series in solar astronomy. Calculate the Pickering series wavelength associated with the excited state ni = 8.
What is its speed in cm/sec? (b) How far in meters would it travel in 2.00 days? (c) If a snail weighs 2.00 grams, how many snails would it take to make a firkin at sea level?
Two syntheses using a grignard reagent, starting with an alkyl halide and later
how many moles of gas are there in a 45.0 l container at 25.0 degress celcius and 500.0 mm hg
Identities of the components in a mixture by Gas chromatography may be determined by the technique called "spiking". Suppose you had run a chromatogram of your product and then deliberately added a known sample of 2 methyl 2 butene
While 1.22 g of a white solid, supposed of being pure cocaine, a molecular compound, is dissolved in 15.60 g of C6H6 the freezing point is lowered by 1.32 ¬0C. Compute the molar mass of the solid. Kf value for benzene = 5.12C/m.
If 37.3 g of CO2 is produced in the reaction of C2H2 with O2 to form CO2 and H2O, how many grams of H2O are produced in this reaction.
Among all single bonds, only those involving hydrogen have signals in the functional group region of an infrared spectrum. What is the main reason behind this phenomenon?
Draw a titration curve for both of these peptides. Be sure to label the axes properly, indicate the pKa values, the equivalence points and the buffering regions
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