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1. Describe the valence bond (VB) approach to chemical bonding and the molecular orbital (MO) theory
Demonstrate hybridization of atomic orbitals for VB & MO
Correlate the molecular shape to the hybrid atomic orbitals of some central atoms.
Combine the concepts of hybrid orbitals, valence bond theory, VSEPR, resonance structures, and octet rule to describe the shapes and structures of some common molecules.
2. Let's explore the scientific method. Here is the scenario: We are planting a garden. We have a variety of bulbs and potted plants. We do not have any directions on how or when to plant each of these items. We do not have any gardening books, magazines, or access to the Internet (Oh, the horror!). We need to observe a number of characteristics for these plants. What are some of the characteristics that we want to observe? What might be your initial hypothesis for growing these? How would you set up an experiment to test your hypothesis? Identify the variables involved. Once you design your experiment, apply what you know about the scientific method to analyze the set-up of your classmate's experiments. How would you modify their design and what questions would you ask? Make sure to come back to the discussions later to respond to the questions proposed by your classmates on your experiment.
Suppose an integral membrane protein diffuses in a cell membrane at a rate of 1.04 square centimeters per 0.09 seconds. Express this rate as an integer with the correct number of significant figures.
Question- in the photochemical decomposition of a certain cmpd, light intensity of 5.4 x 10^-6 einsteins s^-1 was employed. Assuming the most favorable conditions, estimate the time needed to decompose 1 mole of the compound.
in a combustion reaction 4 moles of c8h18 react with 8 moles of o2. if the actual yield of co2 produced is 28.16 grams
Question- Predict how much copper in grams should be transferred from the anode to the cathode if an electrolytic cell is run for 10.0 minutes with a current of 0.75 amps.
How many grams of cobalt metal will be deposited when a solution of cobalt(II) chloride is electrolyzed with a current of 10. amperes for 109 mintues?
Styrene, phenylethene, is treated with H3PO4, an acid whose conjugate base is a poor nucleophile.
What is the pH of a buffer prepared by adding 0.708mol of the weak acid HA to 0.609mol of NaA in 2.00 L of solution? The dissociation constant Ka of HA is 5.66×10?7.
if a 50.0 liter container holds 45 moles of a gas at a temperature of 200 C what is the pressure inside the container
what is the mass in grams of 17.55ml of acetone? and what is the volume in milliter of 7.26g of acetone?
Calculate the molar mass of the unknown gas. Remember that the faster the rate of effusion, the shorter the time required for effusion; that is, rate and time are inversely proportional.
pH of 20.0 mL of 0.10M acetic acid/sodium acetate buffer before and after the addition of 2.0 mL of 0.10 M NaOH; 2.0 mL 0.10 M HCl
How is hydrogen bond different from an ionic or covanlent bond?
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