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As part of experiment need to make 150 ml of a 0.500 m ammonium hydroxide solution from an existing stock solution with a concentration of 8.50 m. What volume of concentrated ammonium hydroxide is required. Also Describe in detail how you would make 50.0 ml of a 0.100 m hydrochloride acid solution from concentrated (12.1m) hydrochloride acid.so explain
To extract quinine from an aqueous solution, what pH should be used and why? I'm not sure if you use both pKa's or just one.
Calculate the solubility of Carbon Dioxide in water at an atmospheric pressure of .50 atm.( a typical value at high altitude). Atmospheric Gas: CO2 Mole Fraction
Calculate the heat capacity per gram of metal. Assume no heat is lost to the calorimeter or the surroundings. The specific heat capacity for water is 4.184 J/g
Two liters of a buffered solution are created from 0.45 M HC2H3O2 (Ka = 1.8 x 10^-5) and 0.36 M NaC2H3O2. (a) What is the pH of this solution
Given that an atom of a semiconductor has a diameter of 3.12 , what is the maximum number of moles that fit in the channel of a processor chip that is 63.5 long, 84.1 , wide and 465 thick? Assume that the atoms stack in a simple cubic arrangement.
If a sample of 0.230 grams of KCN is treated with an excess of HCL, calculate the amount of HCN formed, in grams.
write the condensed electron configurations for the cr3 atom. express your answer in condensed form in order of
What is the maximum number of electrons that can be identified with each of the following sets of quantum numbers? In some cases, the answer may be "none."
Ionization energy is the energy needed to eject an electron from an atom. Compute the ionization energy of a hydrogen atom in its third excited state (n = 4).
Calculate the pressure, in atmospheres, of 3.94 mol CO(g) in a 4.25 L tank at 31 degrees C.
(Neglect volume changes.) [PO43-] = M. (b) Which cation precipitates first? Ag+ Cu2+ (c) What is the concentration of PO43- when the second cation begins to precipitate? [PO43-] = M.
Categorize each phrase below as being relevant to ionic bonding, covalent bonding or metallic bonding. 1. electron transfer 2. Nonmetal with nonmetal 3. Alloy 4. separate molecules 5. metal with metal 6
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