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An element is diamagnetic if it has no unpaired electrons. An element is paramagnetic if it has unpaired electrons. If sulfur has unpaired electrons in the last p orbital (1s22s2 2p6 3s2 3p4), why is it diamagnetic instead of paramagnetic?
A buffer is prepared by adding 11.0 g of ammonium chloride to 250 ml of 1.00 M solution...What is the pH of this buffer
If the reduction of Cl2 to 2 Cl has a potential of 1.3583 V and the reduction of K+ to K has a potential of - 2.95 V, write the reaction between the species that is thermodynamically favored. Please explain reasoning.
A hot tub is filled with 480 gallons of water, which has a density of 1.0 {rm g/mL}. What is the volume of water in the tub, in liters?
How many grams of aluminum metal must react with aqueous sodium hydroxide to produce 7.50 L of hydrogen gas at 12.5 degrees Celsius and 740 torr if the other product is aqueous Na3AlO3. 2 Al (s) + 6 NaOH (aq) ----> 3 H2(g) + 2 Na3AlO3(aq)
The precipitate of CaC2O4, weighed 1.437 grams determine the molarity of calcium chloride in the solution?
after the correct formula for a reactant in an equation has been written , what can be changed to balance the equation?
CaCO3 (100.1 g/mol) has a solubility of 0.018 g/100 mL in water at 35?C. What is the value of Ksp at this temperature?
A 130 mL stock solution contains 1.5 M CuF2. When 13 mL of the stock solution is diluted to 25 mL, what will the concentration of F- ions be?
defined lead free paint as having less than 75mg of lead per 125mg of paint. How many parts per million of lead is this?
Explain in detail why these bacteria don't begin to excrete this metabolite before using up the phenylalanine in the medium.
How much heat is absorbed when 5.53 mol of NH4NO3 solid is dissolved in water? (Heat of soluton = 25.7 kJ/mol)
a solution of lactic acid, HC3H5O3, on a laboratory shelf was undetermined concentration. If the pH of the solution was found to be 2.51, what was the concentration of the lactic acid?
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