Draw a rough energy band
In what type of material is the energy gap between the valence and the conduction band the greatest? Na, Ge or diamond. Draw a rough energy band showing the valence and conduction bands in these materials.
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The absolute configurations for cis-1,2-dimethylcyclopropane would be a) (R,R) b) (S,S) c) either (R,R) or (S,S) d) (R,S)
A gas container with a fixed volume has a pressure of p atm. Gas is then added to the container so that the number of gas particles is the container doubles. What happens inside the container
The designers have two options. one tanks is 42L in size and maintained at 25C while the other is 28L and help at 0.0C, both tanks are pressurized to 5.0 atm. How many grams of hydrogen can be stored in each tank?
Choose the correct answer of the following, explain why it is true, and explain why the other choices are untrue: (A) high pE is associated with species such as CH4, NH4+, and Fe2+
A gas at constant temperature occupies a volume of 4.59 L and exerts a pressure of 895 torr. What volume (in L) will the gas occupy at a pressure of 642 torr
An empty 5.00- flask is charged with 0.450g of pure H2S(g) , at 25 degrees celsius What is the initial pressure of H2S(g) in the flask
What mass of sodium benzoate should be added to 140.0 mL of a 0.15 M benzoic acid solution in order to obtain a buffer with a pH of 4.25
Which one of the following substrates is found in both gluconeogenesis and the citric acid cycle? Answer A. isocitrate B. pyruvate C. phosphoenolpyruvate D. oxaloacetate
Determine the critical micelle concentration and calculate the area occupied by each adsorbed surfactant molecule at the critical micelle concentration.
A student placed 18.5g of glucose (C6H12O6) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100
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