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Elements of symmetry
Question- A 0.170-mole quantity of NiCl2 is added to a liter of 1.20 M NH3 solution. What is the concentration of Ni2 ions at equilibrium. Assume the formation constant of Ni(NH3)62 is 5.5 × 108
For Stronium oxide, SrO, the solubility in water is 0.69 g per 100mL at 30 degrees C and 22.8g per 100 mL at 100 C. Write the equation for the solubility equilibrium, including heat as a reactant or product
Which of the following expressions is not equivalent to pH? a. log 1/[H+(aq)] b. 14.0-pOH c. -log [H+(aq)] d. -log Kw/[OH-] e
The compound MgSO4 is called Epsom salts. How many grams will you need to prepare a bath containing 5.80 moles of Epsom salts? Express your answer using three significant figures.
On average, what percentage of random rolls of three (3) regular playing dice should result in a combined value of 5
Calculate the osmotic pressure generated when 12.9 grams of testosterone are dissolved in 168 ml of a chloroform solution at 298 K. what is the molarity and osmotic pressure
consider the electrolysis of molten barium chloride bacl2. a write the balanced half-reaction that occurs at the
Find the standard free energy change in G at 25 C for the following reaction using standard free energies of formation. What is the value of K at 25 C for this process?
For atomic iodine, determine the degeneracy (which arises from the spin multiplicity) of the first two electronic states. Both are derived from the same S-L term symbol, using spin-orbit (J) coupling. The second state lies 7580 cm-1 above the firs..
Nitrogen and oxygen forms an extensive series of oxides with the general formula NxOy. What is the empirical formula for an oxide that contains 36.85 % by mass nitrogen?
Utilizing a 0.20 M phosphate buffer with a pH of 5.9, you add 0.74mL of 0.55 M HCl to 47mL of the buffer. Explain what is the new pH of the solution
A 13.1 L sample of 0.502 moles of 02 is held under conditions of 1.00 atm and 25.0 Celsius. if all of the 02 is then converted to ozone (03) what will be the volume of ozone
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