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Write an equation describing the hydrolysis of one ester group in tannins by CaCO3.
Based on the sign of E°cell, classify these reactions as spontaneous or nonspontaneous as written. Assume standard conditions. Al3+(aq) + 3Na(s) ---->Al(s) +3Na+(aq) 3Fe2+(aq)+2Cr(s)---->3Fe(s)+2Cr3+(aq) Zn2+(aq) + Sn(s)---->Zn(s) + Sn2+(aq)
One of the components of polluted air is NO. It is formed in the high-temperature environment of internal combustion engines by the following reaction
a) How many pi bonds are in a molecule of N2. b)What is the hybridization of the NItrogen
An aqueous solution of sodium hydroxide is standardized by titration with a 0.266 M solution of hydrobromic acid. If 17.4 mL of base are required to neutralize 28.4 mL of the acid, what is the molarity of the sodium hydroxide solution
Write a suitable mechanism for the cleavage of butyl isopropyl ether with HI at 100 degrees Celsius to form exclusively isopropyl alcohol and 1-iodobutane.
25mL of a .10M solution of the weak acid hydrofluoric acid, HF, is titrsted with .10M solution of the weak base amonia, NH3. Will the pH at the equivilance point be less than 7 equal to 7 or greater than 7? Explain. Ka for HF is 7.2e-4 and Kb for ..
Calculate the pressure in the flask in atmospheres and torr also If the sealed-tube manometer in had a height difference of 20.0 inches between the Hg levels?
Depict a standard energy diagram how does it change when change the concentration of a substance? Collision theory but don't know
Question- After 47 min 20 % of a compound has decomposed. What is the half life of this reaction assuming first order kinetics
One of the sodium oxoacid salts of chlorine (there are 4 salts, each containing Na, Cl, and O) was analyzed. A 17.00 g sample was found to contain 3.68 g Na and 5.67 g Cl.
Calculate the pH of a 0.02 M solution of oxalic acid (H2C2O4). Ka1 = 5.9 x 10^-2, Ka2 = 6.4 x 10 ^-5. Calculate the concentration of oxalate ion, (C204^2-) in the solution
Determine the values for the enthalpy changes of formation of NAOH(aq), HCl (aq), KOH (s), and KOH (aq) in an appropriate work and state a balanced chemical equations corresponding to the values you just found.
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