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1. Determine whether each compound is an Oxide, Peroxide, Superoxide, or something else: Na2O, BeO2, Rb2O2, Ba(O2)2, SrO. 2. Determine whether each oxide would be Acidic, Basic, or Amphoteric: BaO, Cl2O7, Li2O, Al2O3, SO2.
When adding ethylene glycol to your cooling system, it is usually mixed 50:50 by volume. This will prepare a 52.7 mass % solution. Convert this concentration to molality and predict the freezing point depression
Calculate the pH at the equivalence point for the titration of 0.200 M methylamine (CH3NH2) with 0.200 M HCl.
Benzene has a heat of vaporization of 30.72 kJ/mol and a normal boiling point of 80.1 C. At what temperature does benzene boil when the external pressure is 480 torr?
calculate the sodium ion concentration in a solution formed by diluting 35.00 mL of a .585 M sodium phosphate solution to a final volume of 145.00 mL
Silicon has a band gap of 1.1 eV at room temperature. What wavelength of light would a photon of this energy correspond to?
Draw the Lewis dot structure for the HI molecule. Give the shape of the molecule in electron-domain geometry and molecular geometry.
what is the percent yield of CCl4 if 719 kg is produces from the reaction of 410. kg of CS2
For the reaction 2N2O5(g) yields 4NO(g)+ O2(g) what is the decomposition of N2O5(g)
The mass percent of water in a hydrate of MnCl2 is 36.41%. What is the empirical formula of the hydrate
A lime-soda softening plant treats a flow of 150 MGD, and the water has 86 mg/l CO2. The commercial grade of quicklime has a purity of 85% and the soda ash has a purity of 95%.
What is the pH of the solution? The K of hypochlorous acid is 3.8*10-8. Please explain how to get this using the Henderson-Hassalbach Equation.
What is the pH of a 1.2 x 10-4 M solution of KOH? What is the hydronium concentration of this solution?
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