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A solution of NaOH(aq) contains 8.0 g of NaOH(s) per 100.0 mL of solution. Calculate the pH and the pOH of the solution at 25 °C. pH=? pOH=?
Calculate the wavelength and frequency of an emitted gamma particle having the energy of 1.29x 10^11 J mol. Enter in scientiic notation.
What mass of sucrose should be combined with 453 of water to make a solution with an osmotic pressure of 8.00 at 320 ? (Assume the density of the solution to be equal to the density of the solvent.)
Analysis of a 1.000 g of the oral hypoglycemic agent metformin yielded 0.3720 g of carbon, 0.0858 g of hydrogen, and 0.5422 g of nitrogen.
What is the molar mass of a compound if one mole of the compound contains two moles of oxygen atoms, 6.022 × 1024 hydrogen atoms, and 60.05 grams of carbon?
For the following molecules and ions, draw a Lewis structure, calculate formal charges for each atom, and determine the oxidation number for each atom.
The Ksp value for the dissociation of barium nitrate is 0.00464. The molar solubility of barium nitrate is consequently 0.105 M. If the concentration of the barium ion in a saturated solution of barium nitrate was raised to 0.178 M (this is not th..
A solution contains 0.010 M silver ion and 0.0010 M lead(II). Sodium sulfate is dissolved to give a nominal concentration of 0.0010 M sulfate. Does a precipitate form?
The solubility product constant at 25 C for AgI(s) in water has the value 8.3x 10-17. Calculate Delta G rxn at 25 C for the process AgI (s) --> Ag+ (aq) + I- (aq) where (Ag+)= 9.1 x 10 -9 and (I) = 9.1x10-9
A solution contains 1 x 10-3 M Fe2+ and 2 x 10-10 M Fe3+. As the pH of the solution is raised, which iron hydroxide will precipitate first (i.e., ferrous hydroxide, Fe(OH)2(s) or ferric hydroxide, Fe(OH)3(s)). At what pH will this occur?
The complete combustion of methane, CH4, to form carbon dioxide gas and oxygen gas at constant pressure releases 890 kJ of heat per mole of methane consumed. (a) Write a balanced thermochemical equation for this reaction. (b) Draw an enthalpy diagram..
A balloon filled with 39.1 mol helium has a volume of 876 L at 0.0 C and 1.00 atm pressure. The temperature of the balloon is increased to 38.0 C as it expands to a volume of 998 L, the pressure remaining constant.
determine How many grams of AlCl 3 are formed if 30.0 grams of Hydrogen are produced? It is given that the molar mass of AlCl 3 =133.33 g/mol.
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