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What percentage of total HF molecules are in each of the first 6 rotational levels (J = 0-5) at 25oC ? Howmany levels (values of J) are required to account for 99% of all HF molecules at this temperature
if 5.00 g of each NH3, O2, and CH4 are reacted, what mass of HCN will be produced, assuming 100% yield
explain how the ligands of F-, NH3 and CN- bonded to CO3+ can result in a green, yellow-orange, and pale yellow color for these compounds, respectively
hammered into a thin sheet to be used as aluminum foil. If the thickness of the aluminum foil is uniformly 13 um, what area of aluminum foil (in cm^2) can be made? The density of aluminum metal is 2.969 g/cm^3.
Dibutyl ether and 1 -butene can be formed as by products in this reaction. explain how they are removed by sulfuric acid.
The density of aluminum is 2.70 g/cm3. What is the volume of one mole of aluminum?
What is the pressure in atmospheres inside a container of gas connected to a mercury-filled open-end manometer when the level in the arm connected to the container is 21.2cm higher than the level in the arm open
How much Tris (1.0 M) (MW: 121.1 g/mol) and EDTA (0.2M) (MW: 372.2 ) solutions are used to prepare a 100ml of TE buffer (10mM Tris and 1mM EDTA)
Using curved arrows to symbolize electrons, write a complete reaction mechanism for the bromination of acetanilide to create p-bromoacetanilide.
Calculate the de Broglie wavelength of the bullet traveling at 1289 miles per hour. Physical constants can be found here.
a solution is made from mixing compounds A, mole fraction 0.5833, and B mole fraction 0.417. the vapor pressure of A at 55c is 95 mmHg and the vapor pressure of B at the same temperature is 42 mmHg
Which of the following is a mechanism by which enzymes assist in formation of a transition state intermediate? a) Preventing interference by water molecules.
What ions have a larger radius than their parent atom. What is the effect on atomic properties of increasing nuclear charge
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