3091

a)Rank the following 3 tetrachloride compounds in terms of increasing boiling point: carbon tetrachloride (CCl4), methane (CH4), dichloromethane (CH2Cl2) b) Which molecule ( KI or LiF ) has the higher boiling point? c)Select the single most important reas...

Select the appropriate electron domain arrangement for ICl3 If you are using electron pairs in your structure, they can be noted with (ep). > I choose trigonal-bipyramidal What is the atomic geometry of this molecule? > I think this only wants the atoms w...

The charge carrier density of GaAs at 31oC is 2.25x106 cm-3. What is the charge carrier density (in cm-3) at 175oC? The bandgap of GaAs is 1.42 eV.

ELASTICITY, LIKE YOUR SOCKS (10/10 points) The crystal structure of graphite is shown below. Use the figure to answer the following questions. Compare the Young's moduli for the directions indicated in the figure. Fill in the blank. The modulus along a is...

ELASTICITY, LIKE YOUR SOCKS (10/10 points) The crystal structure of graphite is shown below. Use the figure to answer the following questions. Compare the Young's moduli for the directions indicated in the figure. Fill in the blank. The modulus along a is...

DECOMPOSITION OF NO2 (10/10 points) The decomposition of NO2 at room temperature exhibits the following variation in concentration with time: The concentration of NO2 is expressed in mol/liter, while time is expressed in seconds. [NO2] ln[NO2] 1/[NO2] Tim...

DECOMPOSITION OF NO2 (10/10 points) The decomposition of NO2 at room temperature exhibits the following variation in concentration with time: The concentration of NO2 is expressed in mol/liter, while time is expressed in seconds. [NO2] ln[NO2] 1/[NO2] Tim...

DECOMPOSITION OF NO2 (10/10 points) The decomposition of NO2 at room temperature exhibits the following variation in concentration with time: The concentration of NO2 is expressed in mol/liter, while time is expressed in seconds. [NO2] ln[NO2] 1/[NO2] Tim...

HYDROGEN STORAGE IN ALLOYS - THE FUTURE? (10/10 points) Certain alloys such as LaNi5 can store hydrogen at room temperature. A plate of LaNi5 containing no hydrogen is placed in a chamber filled with pure hydrogen and maintained at a constant pressure. At...

3.906*10^-9 - correct

why am I given the bandgap? n = N exp(E/kT) setting this for the two temp and taking the ratio isn't ok?

I'm obtaining a lattice constant of 6.251×10^-9 centimeters which is too small for Mn

density = mass / volume so, mass = density * volume you just have to convert your units