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Compute the concentrations of all species in a 1.57 M Na2SO3 sodium sulfite solution. The ionization constants for sulfurous acid are Ka1 = 1.4× 10-2 as well as Ka2 = 6.3× 10-8.
How do I convert moles of cobalt per liter, to mg cobalt per kg of soil? Originally the cobalt was extracted from the soil, dissolved in water and concentrated by a factor of 10,000 to prepare one liter of solution.
Suppose an integral membrane protein diffuses in a cell membrane at a rate of 1.04 square centimeters per 0.09 seconds. Express this rate as an integer with the correct number of significant figures.
waters heat of fusion is 80 calg and is specific heat is 1.0 calg degree celcius. some velmobile set have been designed
An air bubble initially trapped in the tip of the buret containing the standard NAOH disappears during the titration , how will this affect the reported number of moles in the unknown acid ?
The final temperature of the system is 27.3°C. The resulting 0.500 M NaCl (aq) has a density of 1.02 g/ml, and a specific heat of 4.02 J/g-deg. What is the value of ?H in kJ/mole or the reaction
Of these three separate and individual elements: F, Ra, and As, Arsenic is more likely to form polar bonds. Why and how do you tell
If you have 24.0 g of NaCl dissolved in 306 mL, what is the molarity of the solution
Addition of 0.0125 mol HCL to 150 mL of a 0.150 M formic acid/0.100 M sodium formate buffer results in a pH = _______? Ka of formic acid is 1.8x10^-4
what volume of ethylene glycol, a nonelectrolyte, must be added to 15.0 Liters of water to produce an antifreeze solution with a freezing point of - 30 degrees celcius? what is the boiling point of the solution?
The chemical equations describing the hydrolysis reactions are given. By adding these reactions one can write the overall balanced net ionic equation for the reaction that occurs when ammonium carbonate dissolves in water.
Calculate the wavelength of the photon emitted when the hydrogen atom undergoes a transition from n = 5 to n = 3. (R = 2.179 x 10-18 J R = 1.096776 x 10^7 m-1)
An excess of O2 reacted with 3.68 g of Fe. What is the percent yield if 4.86 g of Fe2O3 are isolated
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