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Plants such as rhododendrons, azaleas, and camellias should not be given dolomite lime. Name a possible reason why.
In a 0.90M solution of the weak acid HA, the acid is 11% ionized. What is the ionization constant, Ka, for the acid? (Show work)
When 70 ml of 3.0 M Nasub2COsub3 is added to 30 ml of 0.1 M NaHCOsub3, the resulting concentration of Na+ is?
Benzoic acid is an organic acid with a Ka of 6.5x10^-5. It can also be used as a primary standard like KHP.
Calculate the pH of the solution after adding two additional drops of HCl after reaching the equivalence point (one drop ~ 0.05 mL)
Methylamine, CH3NH2, is a weak base that reacts according to the equation CH2NH2 + H2O CH3NH3^1+ + OH^1-.
A phosphate buffer consisting of H2PO4(-1) and HPO4(-2) helps control the PH of physiological fluids. Many carbonated soft drinks also use this buffer system.
A 0.10 M Mn2+ solution is saturated with H2S. At what pH will MnS begin to precipitate? [H2S] sat'd=0.10M
How do you calculate the percent disagreement using a calculator for 1.01x10^19 (Avogrado's number of oleic acid molecules.
Write a balanced equation for the breakdown of selenious acid in water, and deduce the charge on the other ion that is formed.
Before the culture medium is used it is diluted to 1.000 L with distilled water. So then what would be the pH after dilution as well?
At 25 degrees C, 0.212 g of barium hydroxide is dissolved completely in sufficient water to make 0.25 liter of final solution.
A solution is prepared by mixing 46.8 mL of 0.16 M Pb(NO3)2 with 75.3 mL of 1.4 M KCl. Calculate the concentrations of Pb2+ and Cl- at equilibrium.
What is the hydroxide ion concentration in mol litre-1? Given answer in scientific notation to an appropriate number of significant figures.
Calculating [H3O+], [OH-], and pOH. What are the values of pH, pOH, [H3O+], and [OH-] for a sample of carbonated water?
What mass of NH4Cl must be added to 200 mL of a 0.200 M NH3 solution to make a buffer with pH = 9.30?
The pH of a Salt Solution. What is the pH of 0.50-M sodium benzoate? The benzoate ion (C7H5O2-) is the anion of benzoic acid.
How much HCl solution is required to reach the equivalence point in the titration of the above solution?
If 25 mL of a 0.45 M AgNO3 solution is added to an excess of a 1.2 M NaCl solution, what mass of AgCl will be preciptitated?
Assume the solar irradiance is 1500 W/m2 and the total planetary albedo is 25 percent. (The Stefan Boltzmann constant is 0.567e-07 W/m2/K4).
Which compund appears to have the strongest intermolecular forces at 100C If one compound has a higher equilibrium vapor pressure.
What is the pH of 0.097 M of triethylammonium chloride (CH3CH2)3 NHCL?
List the following in order of increasing pH of their 0.1 M aqueous solutions (lowest to highest pH)
Over what range of pH is a HOCl - NaOCl buffer most effective?
Pure sulfuric acid can be used as a solvent. Write an equilibrium to represent the self-ionization reaction.