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In an estuary, free Zn2+ will form complexes with the Cl- as below where log Kf are the formation (stability) constants:
Zn2+ + Cl- = ZnCl+ (log Kf1 = 0.40)
ZnCl+ + Cl- = ZnCl2 (log Kf2 = 0.60)
ZnCl2 + Cl- = ZnCl3- (log Kf3 = 0.50)
ZnCl3- + Cl- = ZnCl42- (log Kf4 = 0.20)
(a) Write out the equation for the overall (not stepwise) formation of each complex.
(b) Calculate the overall formation constant, β, for each of the four Zn complexes
While in Europe, if you drive 113 km per day, how much money would you spend on gas in one week if gas costs 1.10 \rm euros per liter and your car's gas mileage is 42.0 mi/gal. Assume that 1 euro = 1.26 dollars.
The Al2O3 does not react. If the sample residue weighs 2.489 g, what is the mass fraction of Fe2O3 in the original sample?
Hypervenilation raises the pH of the blood in a condition known as respiratory alkalosis. Common treatment is to have the patient breathe into a paper bag,
If you are given sodium acetate and asked to make a .5 M acetate buffer at pH 4.75, will you have to add acid, base, or nothing in order to achieve the proper pH? What is the approximate pH after adding the sodium acetate?
what is E cell under final equilibrium conditions of: 0.52 M Cr2O72-; 2.25 M HCl; and 0.56 M I-, resulting in a pressure of I2 that is 0.142 atm and a chromium (III) ion concentration of 0.45 M
Ammonia and hydrogen chloride gases react to form solid ammonium chloride. A 10.0 L reaction flask contains ammonia at 0.483 atm and 22°C, and 169 mL of hydrogen chloride gas at 7.50 atm and 271 K is introduced.
To find the pKa of X-281, you prepare a 0.087M test solution of X-281. The pH of the solution is determined to be 2.40. What is the pKa of X-281?
A reaction has a rate constant of 7.69 M^-1s^-1 at 219 K and a rate constant of 3.36 *10^4 M^-1s^-1 at 344K. what is the activation energy for this reaction
PbO + NaCl + H2O ---> Pb(OH)Cl + NaOH How many grams of PbO and how many grams of NaCl would be required to produce 10.0g of Pb(OH)Cl? a) Mass of PbO required = ? b) Mass of NaCl required = ?
Combine your results in b with the total experimental value of BEta Mu ^x to obtain the attractive contribution to BEta mu ^x and estimate the value of cohesive coefficient t?
If a solution contains 0.01M Ca^2+, 0.01 M Zn^2+, and 0.01 M Ni^2+ ions and you want to separate them using aqueous (NH4)2C2O2, which ion will precipitate first as an ozalate, CaC2O4, ZnC2O4, or NiC2O4
If 3 moles of NaCl are needed to produce 1 mole of AlCl3, how many grams of NaCl are needed to produce 200 grams of AlCl3? Show all of your work/calculations.
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