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Fill in the lines for the orbital/arrow diagram for the valence electrons of the Dyprosium atom, including labeling the n, l and ml values and the individual orbitals that are known?
The concentration of phosphoric acid in Coke is approximately 106.0 mg/mL. Assuming phosphoric acid is the only acid in Coke, calculate the pH of a 355 mL can of Coke.
calculate the change in ph when 6 ml of 0.1 M HCl is added to 100 ml of a buffer solution that is 0.1 M in NH3 and 0.1 M in NH4Cl. And calculate the change in PH
What mass of glucose can be produced from a photosynthesis reaction 6CO2(g) + 6H2O -> C6H12O6(aq) + 6O2(g) that occurs using 18.4 mol CO2? Answer in units of g.
Ammonium nitrate is a common ingredient in chemical fertilizers. Use the reaction shown to calculate the mass of solid ammonium nitrate that must be used to obtain 0.200 L of dinitrogen oxide gas at STP.
Arsenic acid (H3AsO4) is a triprotic acid with Ka1 = 5. 10-3, Ka2 = 8. 10-8, and Ka3 = 6. 10-10. Calculate [H + ], [OH ? ], [H3AsO4], [H2AsO4? ], [HAsO42- ], and [AsO43- ] in a 0.62 M arsenic acid solution.
The atomic mass of silver is 107.868 amu. There are two naturally occurring isotopes of silver, Ag-107 (106.904 amu) and Ag-109 (108.905 amu). What percentage of naturally occurring silver is the heavier isotope. A. 42.5% B. 45.4% C. 48.2% D. 49.8..
The mass of an atom of beryllium is 1.5 x 10^-26 kg. How many beryllium atoms are present in beryllium film of mass 0.37 g used as a window on an x-ray tube
Write a reaction for the formation of a peptide bond between alanine and serine. React the amino group of alanine with carboxyl group of serine. Remember that there are 2 products in this reaction.
Write net ionic equations for the reaction, if any, that occurs when acqueous solutions of the following are mixed: a) ammonium sulfate and barium nitrate
To identify a diatomic gas (\rm X_2), a researcher carried out the following experiment: She weighed an empty 1.00-\rm L bulb, then filled it with the gas at 1.10 \rm atm and 23.0 ^\circ\rm C and weighed it again.
The mass of substance B is 25.0g and its initial temperature is 52.0 degrees C. The final temperature of both substances at thermal equilibrium is 46.0 degrees C
Draw the acid/base balanced reaction when 4-methylphenol is reacted with 50% potassium hydroxide solution
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