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Which of the subsequent isoelectronic species has the largest radius? Depict the electron shells/Zeff for all answer choices. And please define why you picked the answer you did.
a) Neb) F-c) Mg^2+d) Na+e) O 2-
a student placed 17.5 g of glucose in a volumetric flask added enough water to dissolve the glucose by swirling then
TCE is added to the aqueous phase so that initally it has an aqueous phase concentration of 100 ppb. After the system equilibrates, what will be the concentration of TCE in the aqueous phase
What should be the final volume of a solution containing 50.5g of solid KMnO4 be in order to prepare a 0.745 M solution
A typical vitamin c tablet (containing pure ascorbic acid, H2C6H6O6) weighs 500 mg. one vitamin c tablet is dissolved in enough water to make 200.0 mL of solution. calculate the pH of this solution. Ascorbic acid is a diprotic acid.
a compound has a molar mass of 100 gmol and the percent composition ofnbsp 65.45 c 5.5 o. determine the empirical
calculate the percentage of empty space in 1 mol of water at25 celcius. obtain the density. the volume of amolecule of
What is the solute and solvent of Antifreeze? What is the solute and solvent of Pepsi? What is the solute and solvent of Sterling Silver?
A 1-L flask is filled with 1.45 g of argon at 25^0C. A sample of ethane vapor is added to the same flask until the total pressure is 1.25 atm.what is the partial pressure of argon in the flask?
What mass (in grams) of this substance must evaporate to freeze 200g of water initially at 15 degrees C? (The heat of fusion of water is 334 J/g; the specific heat of water is 4.18 J/g-K.)
the pH of the solution is 9.15. After adding 16.55 mL of hydrochloric acid to your sample, the pH is 8.78. Calculate the first derivative of the function of the pH of your solution with respect to the volume of titrant added
What is the percent yield of elemental sulfur if 7.54 grams of sulfur are obtained from the reaction of 6.16 grams of SO2 with an excess of H2S. 2H2S + SO2---> 2H20 +3S
A solution is initially 0.050M in acetate, CH3COO- (Kb = 5.6 x 10^-10). 10.0mL of 0.10 M HCl is added. Write a chemical equation for the neutralization reaction that occurs.
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