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The common forms of nitrogen and phosphorus are N2(g) and P4(s) respectivly. Account for the difference in terms of the single and multiple bond enthalpies.
What is the main component of the first eluting peak and what percentage of the total absorbance at 300nm is due to this component?(assuming the light path- length = 1.0 cm)
How many grams of O2 will be required to completely react with 2.43 grams of Mg metal ribbon to produce MgO.
Calculate the pH of a buffer tht contains 0.60M ammonium chloride
If a few drops of water on the outside of the hot water syringe used to dispense the 5.00 mL sample into the calorimeter well for the Kcal determination fell into the well
Suppose that for the precipitation of the stock solution of borzac, the solid borax reagent is contaminated with a water-souble substance that does not eact with HCl.
Solving this question helps the student to understand how to find molecular formula using moles and mass and What is the molecular formula of this compound?
Suppose the pH of the water is 4.59 and that the concentration of iron(II) in the water is 7.99x 10-5 M, what is the potential of the corrosion reaction under the above conditions at 298 K?
How many milliliters of 1.50 M H2SO4 are needed to neutralize 50.0 g of NaOH?
Determine the pH of the solution before the addition of any HNO3. The Kb of NH3 is 1.8 × 10-5. a. 4.74 b.9.26 c.11.13 d. 13.00 e.12.55
Account for the fact that H3C-Cl (dipole moment 1.94D) and H3C-F (dipole moment 1.82D) have almost identical dipole moments, even though fluorine is considerably more electronegative than chlorine.
Within this analogy, discuss how the shielding by core electrons is analogous to putting a frosted-glass lampshade between the lightbulb and your eyes, as shown in the illustration.
The mass of 322 mL of hydrogen gas at 4.0 atm and -73°C is 1.21 grams. What is the density of hydrogen gas at STP?
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