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1a. What atomic or hybrid orbitals make up the sigma bond between C2 and Cl in dichloroethylene, CH2CCl2?
1b. What is the approximate C1-C2-Cl bond angle?
2a. What atomic or hybrid orbitals make up the sigma bond between P and Cl in phosphorous pentachloride, PCl5
2b. What are the approximate Cl-P-Cl bond angles ? (list all possible)
3a. What atomic or hybrid orbitals make up the sigma bond between I and I in triiodide ion, I3-?
3b. What is the approximate I-I-I bond angle?
A solution of potassium hydroxide of unkown concentration is used to titrate 15.0 mL of a 2.5M sulfuric acid solution. The volume of the base is needed 27.2mL. What is the molarity of the base?
A solid mixture contains MgCl2 and NaCl. When 0.5000 g of this solid is dissolved in enough water to form 1.000 L of solution, the osmotic pressure at 25°C
The work function for Cu metal is 4.80 eV. If a piece of Cu is bombarded by violet light (λ = 4,000 Å), will electrons be ejected? "YES" or "NO" with supporting argument/calculation.
An iron bar of mass 869 - g cools from 90 oC to 5 oC Calculate the heat released (in kilojoules) by the metal. ( specific heat = 0.44 J/(g. c)
Molar Concentration of Copper (II) Nitrate, A 25.00 mL sample containing Cu2+ gave an instrument signal of 23.6 units (corrected for a blank). When exactly 0.500 mL of 0.0287 M Cu(NO3)2 was added to this solution
Describe the reactant and products of the chemical reaction. Was the reactant (potato chip) completely consumed? What evidence supports your answer?
What is the voltage of the cell: silver-silver chloride electrode || saturated calomel electrode given that the potential for the Ag|AgCl electrode in a saturated KCl
What is the value of at this temperature? 23.15 At this temperature the rate constant for the reverse reaction is 310. . What is for the reaction?
If 0.628 moles of a substance weighs 77.3 g, what is the molar mass of the substance, in units of g/mol?
1) Prions are smaller than viruses, which are affected by radiation. 2) Prions do not contain genetic information, which is affected by ionizing radiation.
What is the ee?, The optical rotation of a compound is -165. What is the ee for a solution mixture with a measured rotation of -50?
the Brackett series of hydrogen has a wavelength of 2626 nm. From what state did the electron originate
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