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What fraction of iodine -131 remains 32 days after a 12.0 gram dose was administered? The half life of iodine -131 is 8.0 days. Fraction remaining =(0.5)n
The selenite ion is an oxoanion of selenium bearing a negative two charge and containing three oxygen atoms. Write the formula for the selenite ion.
Assume that the electrode follows the Nernst equation, the temperature is at 25°C, and that the activity coefficient of X is 1.
What would happen if too much triethyamine was added to the reaction? Also if you added too much acrylic acid?
For reaction a+ b = c the colorless reactants produce deep red complex. Heating makes the color dissapear. Once cooled the deep red color retuns
Compute the enthalpy change for the dissolution of ammonium nitrate express your answers in units of kJ/mol.
You are studying a reaction wherein compound X is dehydrogenated to yield compound Y, and in the absence of a catalyst you have determined that the Go under standard conditions of pH 7 and 37o (RT = 0.59 kcal/mole) has a value of +0.7 kcal/mole.
the total pressure of the system is found to be 4.50 atm At 700 degrees celsius. compute the equilibrium partial pressures of carbon dioxide and carbon monoxide if the equilbrium constant Kp = 1.52,
The balanced reaction has a -2217 kJ. If a steak must absorb 7.2 * 10^-4 kJ to reach a perfect medium rare and only 15% of the heat produced by the barbeque is actually absorbed by the steak, what mass of H2O is emitted into the atmosphere when th..
Determine the molarity of a saturated aqueous solution of NaI formed as 25degree celsius assuming that the added NaI does not add significantly to the volume of the water?
Chlorine gas can be prepared in the laboratory by the reaction of hydrochloric acid with manganese(IV) oxide: 4HCL(aq) + MnO2(s) ----> MnCl2(aq) + 2H2O(l) + Cl2(g)
the pH of a 0.20 M solution of a weak monoprotic acid is 3.70. What is the value of the ionization constant
You need to prepare 100.0 mL of of buffer solution of pH=4.00 using 0.10M benzoic acid (pKa=4.20) and 0.160M sodium benzoate. What is the volume of each solution needed to prepare this buffer?
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