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Butyric acid is responsible for the foul smell of rancid butter. The pKa of butyric acicd is 4.84.
a) Calculate the pKb for the butyrate ion.
b) Calculate the pH of .050M solution of butyric acid.
c) Calculate the pH of a .050M solution of sodium butyrate.
Calculate the rms (average) speed of NF3 atoms or molecules at 202 oC. Use R = 8.314 kg-m2/K-s2-mol for the value of the gas constant.
the freezing point of the solution is lowered by 5.10 °C. The freezing point and Kf constant for cyclohexane can be found here. Calculate the molar mass of quinine.
If a solution containing 61.402 g of mercury(II) perchlorate is allowed to react completely with a solution containing 17.796 g of sodium sulfate, how many grams of solid precipitate will be formed?
what fraction of this side chain is positively charged and what fraction is neutral at pH 7.2?
Show by flow diagram the reaction equation for how you could resolve a racemic carboxylic acid [(+-)-RCOOH] using an enantiomerically pure amine
Calculate ?H for the reaction 2C(s) + H2(g) ? C2H2(g) given the following reactions and their respective enthalpy changes
Ethene burns in air according to C2H4 + 3O2 = 2CO2 + 2H2O. What is the theoretical yield of CO2 when 1.62 g of C2H4 are reacted with 2.42 g of O2
A sample of hydrogen gas was collected over water at 36°C and 855 mm Hg. The volume of the container was 6.50 L. Calculate the mass of H2(g) collected. (Vapor pressure of water = 44.6 torr at 36°C)
Using the following data collected, calculate the molar mass of the unknown acid. Include calculation for each trial and the average.? Mass unknown acid
A 1.45 g sample of an iron ore is dissolved in acid and the iron obtained is (aq). To titrate the solution, 21.6 mL of 0.102 M KMnO4(aq) is required. What is the percent of iron in the ore? Hint: calculate moles of iron then mass of iron then % ir..
Which of the following functional groups will exhibit NO IR absorption at 1630 -1780 cm-1 or at 3200-3550 cm-1
A city's water supply is fluoridated by adding NaF. The desired concentration of F- is 1.6 ppm. How many milligrams of NaF should be added per gallon treated water if the water is already 0.2 ppm F- (1 gallon = 3.78 Liters)
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