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Admium(II) chloride is added to a solution of potassium hydroxide with a pH of 9.62. (Ksp Cd(OH)2 = 2.5 X 10-14)
(a) At what concentration of Cd 2+ does a precipitate first start to form?
(b) Enough cadmium(II) chloride is added to make Cd2+ 0.0013 M. What is the pH of the resulting solution?
(c) What percentage of the original hydroxide ion is left in solution?
How many grams of urea [(NH2)2CO] must be added to 345 g of water to give a solution with vapor pressure 2.45mmHg less than that of pure water at 30 degrees Celsius?
What is the [t-BuCl], in M, when bromophenol blue changes color. Given this data, what will the kinetic equation (x-kt) be for this data. If 787 sec were required for the bromophenol blue color to change, then calculate
We add R12 to the tank until the final mass of R12 inside the tank is 80 kg. If the temperature remains constant, what is the volume occupied by the liquid in the final state. How much mass of R12 was added to the tank
The products were collected and had the following masses: CO2: 1.707 g N2: 0.136 g H2O: 0.7859 g For this compound (CaHbOcNd) what are the integers a,b,c and d in the empirical formula
The volume of blood in the body of a certain deep-sea diver is about 7L. What is the maximum volume of nitrogen measured at 1atm and 37 celsius that could dissolve in the diver's blood plasma at a particular depth where the pressure is 10.3atm
Assuming equal concentrations rank theses solutions in order from lowest ph to highest(all aqueous). Ca(OH)2, HBrO, NH3, RbOH, HI
What is the IUPAC name for Fructose. Not the 1,3,4,5,6- Pentahydroxyhex-2-
a 93-l sample of dry air cools from 145 degrees celicus to -22 degrees celicus while the pressure is maintained at 2.85
Why was acetone added to the reaction mixture only after we briefly mixed the catalyst and the behzaldehyde? 3. Why doesn't the dibenzalacetone product react (via the aldol condensation pathway) with the excess benzaldehyde in the reaction mixture..
Many animals depend on trees and bushes for: a)Shelter, b)Pollination, c)Seed Dispersal, d)Sunlight
Magnesium can be obtained by precipitating Mg^2+ as Mg(OH)2(s). The Ksp of Mg(OH)2 is 6.0*10^-10. The magnesium ion concentration is 0.059M. If a sample of solution is treated so its [OH-] concentration is maintained at 2.0*10^-3M
A student takes 148. g of BaCl2, and reacts it according to the following equation: 3BaCl2 + Al2(SO4)3 → 3BaSO4 + 2AlCl3 How many moles of AlCl3 are formed?
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