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Draw the Lewis structure and shape for PCl5. Which of the following statements are correct. Summary of names and shapes using VSEPR Choose at least one answer. a. There are 40 valence electrons. b. There are 42 valence electrons. c. The steric number is 3 d. The steric number is 4. e. The steric number is 5. f. The shape is trigonal prymidal. g. The shape tetrahedral. h. The shape is trigonal biprymidal. i. The shape is octahedral.
sodium hydroxide reacts with sulfuric acid to produce sodium sulfate and water. how many grams of sodium hydroxide are
Calculate the melting point of ice under a pressure of 50 bar. Asume that the density of ice under these conditions is approximately 0.92 g/cm^3 and that of liquid water is 1g/cm^3
Nitrogen and hydrogen combine at high temperature, in the presence of a catalyst, to produce ammonia. N2(g) + 3H2(g) --> 2NH3(g) Assume 0.170 mol of N2 and 0.543 mol of H2 are present Initially
Determine the point group of each of the three possible geometries of the hypothetical Be3+ on, ten draw the molecular orbitals for each geometry,
which gives the order for first ionization energies smallest to largest
Identify the element oxidized and reduced in the following redox rxn. Also indicated the number of electrons lost/gained by each atom.
A saturated solution of silver(I) hydroxide, AgOH has a pH of 10.15. What is the value of the equilibrium constant, Ksp, for this system?
What mass in grams of CO2 was evolved? The balanced equation I set up is: Na2CO3 + 2HClO4 --> NaClO4 + CO2 + H2O Now what? What was the molarity of the excess reactant (HCl or Na2CO3)?
175 g of water was heated from 15 degrees to 88 degrees C. How many kilocalories were absorbed by the water?
The water portion of an adult's total blood supply is about 5 liters. How many grams of oxygen could dissolve in 5 liters of water?
A 0.338-g same of anhydrous sodium carbone, Na2CO3, is dissolved in water and titrated to a methyl orange endpoint with 15.33 mL of a prepared hydrochloric acid solution. What is the molar concentration of the HCl solution
The electrolysis of molten A12O3 at 980 ºC is used to produce metallic aluminum. A current of 658 A is used in the electrolysis cell. What is the rate of formation of aluminum, in kilograms per hour
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