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A. When dissolved solute and undissolved solute exist in equilibrium with each other in a solution, that solution is said to be "supersaturated".B. An ideal solution follows Raoult's Law.C. The hydration of an ion is always an exothermic process. (?Hhyd is negative)D. Gases are less soluble in water at higher temperatures.
Will solutions of the following salts be acidic, basic, or neutral? a)K2SO4 b)KNO2 c)CaF2 d)NH4Cl
A solution was prepared by dissolving 0.450 g MgSO4 (FW=120.363g/mol) in 0.500L of water. A 50.0 mL aliquot of this solution consumed 37.60 mL of EDTA solution in a titration. How many milligrams of CaCO3 (FW=100.089g/mol) will react with 1.00 mL ..
A 70.0 g steam sample at 150.0 degree Celsius was converted to ice at -150.0 degree Celsius, calculate the total amount of heat removed in the process.
Calculate the pH of the solution after the following volumes of HCl have been added. (For each part remember t ask yourslef these questions. What units am I working in?
Calculate the pH of a 0.047 M solution of carbonic acid H2CO3. The Ka1 of carbonic acid = 2.6 x 10-7 and the Ka2 of carbonic acid = 5.6 x 10-11 what is the easiest way someone can explain this
A solution is made that is 1.1×10^?3 M in Zn(NO3)2 and 0.150 M in NH3. After the solution reaches equilibrium, what concentration of Zn2+(aq) remains
In the work-up procedure the reaction mixture is neutralized with NaOH (aq) and then extracted twice with diethyl ether. Explain why this is done. This was for an OChem Menthone lab.
Acetone, C3H6O, and ethyl acetate, C4H8O2, are organic liquids often used as solvents. At 30 degrees C, the vapor pressure of acetone is 285 mmHg and the vapor pressure of ethyl acetate is 118 mmHg.
Assuming the oil layer to be one molecule thick, calculate the approximate diameter in Angstroms (1 A = 10^-10 m) of a single molecule. (Use volume = area x depth.)
table salt and sugar are accidentally mixed a 4.90g sample is burned and 2.20-g of co2 is produced. what is the mass
how do you calculate the density of metals? could this method be used for determining the density of mercury as well?
A graduated cylinder contains 155 g of water. A 11.0 g piece of iron (density = 7.86 g/cm^3) and a 16.0 g piece of lead are added. What is the new water level in the cylinder?
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