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Which is predicted to be the most ionic substance?
a. NiS b. CuI c. CoO d. NaBr
Calculate the molarity of each of the following solutions. (a) 23.0 g of ethanol (C2H5OH) in 545 mL of solution (b) 15.4 g of sucrose (C12H22O11) in 74.0 mL of solution
Example: Determine the solubility of calcium fluoride at 25C. And Be sure to note the difference between Solubility and Solubility Product Constant ! What could we do to change the system and produce a precipitate?
If you have 24.0 g of NaCl dissolved in 306 mL, what is the molarity of the solution
If the process occurs adiabatically and at constant (atmospheric) pressure (a) what is the mass of water that solidifies and (b) what is the change in entropy of the system?
Determine compound having greater Ksp or compound having smaller Ksp ? compute [Ag + ] when CuI just start to precipitate. What % of Ag + remains in solution at this point?
A sample of molten iron occupies a volume of 7.11 x 10-3 L. If the density of iron is 7.86 g/cm3, what is the mass of iron in grams in the sample?
what is the pressure when the volume of the gas is reduced to one-fifth of the original value at the same temperature?
Lead thiocyanate, rm Pb(SCN)_2, has a K_sp value of 2.00 times 10^{-5}.Calculate the molar solubility of lead thiocyanate in 1.00 it M rm KSCN.
draw the stuuctural formula of your drug C13 H21 NO3 albuterol. Highlight any regions of your drug that are nonpolar
In the preparation of esters, the reaction product was extracted with 5% of sodium bicarbonate solution in the isolation step. Why? What gas was evolved during this washing step? Write a balanced equation for the reaction that produced it.
Zinc chloride (ZnCl2) is 52.02% chlorine by mass. What mass of chlorine is contained in 66.0 g of ZnCl2?
Zn(s) + 2 HCl(aq) → H2(g) + ZnCl2(aq) If 1.26 L of H2 gas are formed at STP, how many g of HCl reacted?
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