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Four of the following statements about the ammonia molecule, NH3, are correct. One is not. Which one?
A) The ammonia molecule is tetrahedral.
B) Since nitrogen is more electronegative than hydrogen, the bond dipoles are directed toward the nitrogen atoms.
C) The bond dipoles reinforce the effect of the unshared pair of electrons on the nitrogen atom.
D) The bond angles in the ammonia molecule are less than 109°.
E) The nitrogen atom can be described as utilizing sp3 hybrid orbitals in the ammonia molecule.
What concentration of NH3 is needed to lower the Cu2+(aq) to 6.4 x 10-14M in a solution that was originally 1.43 x 10-4 M in Cu2+(aq)
Combustion of solid urea: CO(NH2)2 (s) + 3/2 O2 (g) --> CO2 (g) + N2 (g) + 2H2O According to bomb calorimetry measurements
find molarity molality percentage composition boiling and freezing point of a solution.dataelement atomic wt
How do you predict the formulas for ionic compounds using the electron dot structures?
Alpha-linolenic acid is one of a large group of fatty acids that are found in fish oil, walnuts and canola seeds. These nutrients are essential for good health. All of these fatty acids consist of an unsaturated hydrocarbon that is terminated by a..
A flask contains 0.110 mol of liquid bromine, rm Br_2. Determine the number of bromine molecules present in the flask.
Describe how you could determine the specific heat of a metal by using the apparatus and techniques
If there is the possibilty that the container may rupture if the pressure exceeds 8.0 atm, at what temperature is rupture likely to occur?
calculate the radius of a chloride ion. find values reported for the ionic radii or sodium and chlorine in a refernce book, and compare them with the values you determined. is the differnece significant?
What is the solubility of MnS, in grams per liter, in a buffer solution that is 0.115M HC2H3O2 - 0.500M NaC2H3O2 ? For MnS, Kspa=3x10^7
What is the equilibrium partial pressure of N2O4? (atm) (b) Calculate the value of Kp for the reaction. (c) Calculate the value of Kc for the reaction.
1) Calculate the solubility of Au(OH)3 in water. (Ksp = 5.5e-46). 2) Calculate the solubility of Au(OH)3 in 1.1 M nitric acid solution.
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