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A 2.0 L solution contains [Ag+] = 0.100 M and [Pb(2+)] = 0.100 M (Ksp = 1.8 * 10^(-10) for AgCl and Ksp = 1.8 * 10(-5) for PbCl2). Explain the metals are selectively precipitated by adding NaCl. Presume no volume changes.
(a) Explain at what [Cl^(-)] will each salt begin to precipitate?
(b) Explain what percent of the Ag+ has precipitated before the PB^(2+) begins to precipitate?
(c) Explain how many grams of NaCl must be added to precipitate a maximum amount of AgCl before any PbCl2 begins to precipitate?
A sample that has the formula MgCl2.6H2O loses a portion of water when it is dried in an oven but undergoes no other changes. If the student started with 10.000 g of the compound, and ends with a residue that weighs 7.342 g whats the formula of th..
The next generation "ultra supercritical" power plants may operate with steam pressures of up to 300 bar. However, material strength limitations prevent operation of high pressure equipment at temperatures above 600 C.
Explain the particle in a one dimensional box is sometimes used as a model for pi electrons in a conjugated bond system.
a)which is the strongest oxidizing agent? Cu, Pb, Sn, Zn, Al, Mg.......... b)Which one is the strongest reducing agent?................c)If you want to design a battery from relatively common materials that produced a voltage of about 1 V which ce..
what is the work in joules done on the system to compress He gas from 24.0 L to 12.5 L against a pressure of 1.5 atm at a constant temperature of 37.4 C?
Calculate w (in kJ) when 538 g iron (III) oxide (MM = 159.7 g/mol) reacts with excess carbon to produce carbon dioxide gas at 479 K: 2Fe2O3(s) + 3C(s) ? 4Fe(s) + 3CO2(g)
neutrons are very important in the fission of uranium the manufacture of the artificial isotope plutonium-239 and in
Report the actual mass of H2O delivered to the flask. (Density of water = 1g/mL at 25°C.) (Poured 100mL of water in flask)
Which of the following types of crystalline solids has a low melting point, is generally insoluble in water, and is a nonconductor of electricity
Ammonium nitrate (NH4NO3) decomposes into nitrogen, oxygen, and water. If 12g of ammonium chloride decompose entirely at 300 C with delta H reaction =-236.kJ
which of the following would have the lowest freezing point?a. 1 m cano3b. 0.1 m kno3c. 0.1 m hcld. 0.1 m sucrosee. 0.2
what is the pH of a solution that results from adding 0.043 mol Sr(OH)2 (s) to 1.31 L of a buffer comprised of 0.27 M benzoic acid, C6H5COOH and 0.27 M sodium benzoate, C6H5COONa?
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