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Explain how many electrons are present in the outer shell of boron in boron trifluoride (BF3) as well as of sulfur in (SF6).
Explain now the answer is 6 electrons in Boron and 12 electrons in Sulfur.
Determine pH of the solution....ICE table..Henderson HasselBach equations, Using a ICE table (initial change equilibrium) a)Calculate the pH of solution that is 0.175M in acidic acid(HC2H3O2) ans 0.110Min potassium Acetate(KC2H302)
At 200 K, the rate constant for the reaction of NO with ozone to give NO2 and O2 was found to be 1.3 x 106 L/mol•s. At 300 K, the rate constant increased to 9.9 x 106. Calculate the activation energy for the reaction in kJ/mol
Label and identify ALL functional groups. Label the chiral carbons (*), label the priorities (1,2,3,4) of the four "things" connected to the chiral carbon, draw the arrow or rotation and identify as R or S.
Show, with the aid of a form of the Nernst equation that when using a pH sensitive glass electrode and reference electrode that the measured potential is proportional to pH.
how many phospholipid molecules with an area of 8 x 10-19 m2 are needed to make the cell membrane for a cell of 10um
The observed rotation of a solution of 1.2 g of a compound in 10 mL of water is -6.9 degrees. If the pathlength is 10 cm, what is the specific rotation of the compound
A gaseous mixture of O2 and Kr has a density of 1.102 g/L at 420 torr and 300. K. What is the mole percent O2 in the mixture?
What is the value of the rate constant at the temperature of this experiment. Give an answer with concentration units of molarity and time units of seconds.
What is the mass density of hydrogen relative to air at the same temperature and pressure? What mass of payload can be lifted by 10 kg of hydrogen, neglecting the mass of the balloon
NH3 is a weak base (Kb = 1.8 × 10-5) and so the salt NH4Cl acts as a weak acid. What is the pH of a solution that is 0.049 M in NH4Cl
Find the moment of inertia about the x-axis of the lamina that has the given shape and density (rho). Round in the thousandths place. y = x^2, y = sqrt(x); rho(x, y) = x^2
A sculptor has prepared a mold for casting a bronze figure. The figure has a volume of 225 mL. If bronze has a density of 7.8 g/mL
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