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1. What is a covalent bond? What is an unshared pair (nonbonding pair or lone pair)?
2. Make a list of rules for writing Lewis Structures.
3. What does VSEPR stand for? What is VSEPR used to do? What is the principle behind the VSEPR theory?
4. Draw the correct Lewis structures and molecular geometries for H2O, NH3, BrF3 and PC11F3. Name each molecular geometry.
Mg(OH)2 is a sparingly soluble salt with a solubility product, Ksp, of 5.61*10^(-11). It is used to control the pH and provide nutrients in the biological (microbial) treatment of municipal wastewater streams
A 20ml volume of previously boiled, deionized water is added to the Erlenmeyer flask to prepare the sample for titration. Define why this volume is not critical to the analysis.
Determine the molar mass of each of the following gases: 0.93g of a gas that occupies 410mL at 0 °C and 1.00 atm (STP). 1.26g of a gas that occupies 1.00L at 0 °C and 760 mmHg (STP). 1.54g of a gas that occupies 1.40L at 680mmHg and 22.0°C. 3.0g of a..
natural gas is primarily methane ch4 and is used to heat homes. a typical home is approximately 2000 ft2 and the
Find the temerature at which water boils on a day in the mountains when the barometric pressure is 593 mmHg. (Gien the heat of vaporization of water is 40.79 kJ/mol).
Fe(NO3)3, 5 drops of 0.1 M KCNS why are ions present when you mix those solutions? I also conducted the experiment using an unknown and got the same results for both.
(1) write the electron configuration of Co (III) (2) what is the geometry structure of this complex ion? Linear, Tetrahedral, Square planar or Octahedral. (3) predict the number of unpaired electrons in [Co(en) ] (4) draw the crystal field diagram..
a large oil spill that resulted from the 1989 shipwreck of the exxon valdez cause considerable damage to alaska's wildlife. do you think a comparable spill of a water-insoluble liquid that has a density of 1.20 g/mL would have been as harmful to w..
a total of 2.00 rm mol of a compound is allowed to react in a foam coffee cup that contains 117 g of water. the
Determine the mass of sodium phosphate that yields 1.00 g of calcium phosphate precipitate.
If the activation energy for the isomerization ol cyclopropane to propene is 274 kJ/mol. Explain by what factor does the rate of reaction increase as the temperature increases from 247 to 279 oC. The factor is the ratio of the rates.
Problem- A certain volume of a 0.50M solution contains 4.6g of a salt. What mass of the salt is present in the same volume of a 2.2M solution?
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