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A. Calculate the pH of each of the following solutions.
a. 0.10M benzoic acid
b. 0.10M sodium benzoate
B. Calculate the ph of a buffer solution that contains 0.25M H2CO3 and 0.50M NaHCO3-?
A 100. mL sample of 0.10 M HCl is mixed with 50. mL of 0.15 M NH3. What is the resulting pH
Consider the fermentation of one molecule of glucose (Glc) to two molecules of lactate (Lac): Glc 2 Lac. Which of the following sets of concentrations would result in the largest release of free energy at 30°C
A nuclear reaction involves the hypothetical element X, which has an atomic number of 166, as a reactant. The 360X nuclide reacts with 5 neutrons yielding a nuclide of element Y along with, altogether, 2 beta particles, 5 neutrons, 3 alpha particl..
What are the equilibrium partial pressures of \rm PCl_3 , \rm Cl_2, and \rm PCl_5, respectively. For the exothermic reaction PCl3(g)+Cl2(g)\rightleftharpoons PCl_5(g) K_{\rm p} = 0.100 at a certain temperature.
explain why moderate contamination of a basalt by granitic rocks does not greatly change the FeO/MgO ratio of the hybrid magma with respect to the ratio of the original basalt.
A concentration cell consists of two Sn/Sn2+ electrodes. The electrolyte in compartment A is 0.15 M Sn(NO3)2. The electrolyte in B is 0.82 M Sn(NO3)2. Which electrode is the cathode
If 10 g of C react with 115 g of O2 according to the equation C + O2 → CO2, how many g of O2 will remain unreacted?
write structures for the various aldol condensation products you expect from the aldol self-condendsation of 2-butanone
2.05 mL of a sodium hydroxide solution is needed to react completely with 0.5210 g of KHP (molar mass+204.22) What is the concentration of the sodium hydroxide solution
Write a net ionic equation accounting for this. For the reaction in part a, write the equilibrium constant expression and calculate the equilibrium constant from a consideration of Kb and Kw.
What is the pressure in atmospheres inside a container of gas connected to a mercury-filled open-end manometer when the level in the arm connected to the container is 22.5 cm higher than the level in the arm open to the atmosphere andthe atmospher..
density of 9.14g/cm^3 is placed in a 30.0mL cylinder. Water level rises to 34.5mL. what is the mass of the piece of metal?
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